Expectations vs. Assumptions: The Conversation Costing You More Than You Think

An expectation nobody says out loud is really just an assumption, and it shows up everywhere, from a 27 year old still living at home to a manager who never said what a promotion actually meant. Here's why clarity, not good intentions, is what actually prevents the resentment.

Erin Treacy

August 19, 2026

I know a family with a 27 year old son still living at home. He works part time. He hasn’t landed a job in his actual degree field, and honestly, he doesn’t seem to be looking very hard either. It’s almost like he expects the right job to eventually find him instead of the other way around. His parents watch him hang out with friends and play video games while he tells them, and himself, that he’s working on it. Genuine frustration builds. They keep saying the same thing to him. Get a job. Do more. It’s a perfect, real life example of expectations vs assumptions playing out under one roof.

Here’s what’s also true. His parents still do his laundry, clean his room, and cook every meal. They also cover his car payment and his insurance. He pays no rent at all.

The words say one expectation. The actions say something completely different, and completely opposite. Suppose nothing in his daily life actually changes no matter how long he goes without applying anywhere. The real message he’s absorbing isn’t “get a job.” It’s “this is working out fine as it is.” This is expectations vs assumptions in its clearest form. An expectation only actually counts when the words and the actions point the same direction. The second they split apart, the person on the receiving end responds to the actions every time, not the words. Nobody understands why nothing’s changing.

Parent and adult child having an honest conversation at home about expectations vs assumptions

Expectations vs Assumptions With Adult Children Living at Home

Pew Research has spent real time studying how parents and their adult children actually communicate, and one number stuck with me. Among parents who help their adult kids, nearly three times as many feel they’re doing too much as feel they’re doing too little. Meanwhile, most young adults say their parents stay about as involved as they’d actually like, no more, no less. Two generations largely feel fine with things on their own terms, and a real, quiet mismatch still hides underneath those averages.

My own kids come to mind constantly when I think about this. I do have real expectations for them. Be good people. Build a life that’s genuinely theirs. Give back to whatever community they end up part of. A specific degree, a specific career, a specific zip code, none of that makes my list. Even reasonable expectations cause real friction if they only ever live in my head, and I’ve learned that the hard way. Saying it plainly is the only way my kids actually know what matters to me. Otherwise they piece together some version from years of holiday dinners and offhand comments.

The reverse holds just as true, maybe more often. A parent’s pressure can feel completely real even when nobody ever actually stated it as an expectation. A grown child builds it slowly instead, from tone, timing, a look across the table, and neither person ever actually names it out loud. Both versions cause real strain. An honest conversation can actually resolve only one of them.

The Same Expectations vs. Assumptions Pattern at Work

This pattern shows up in businesses too, so it clearly isn’t just a family thing, it’s a human thing. Gallup has asked employees a version of the same question for decades. Do you actually know what your job expects of you? The number that keeps showing up sits close to half. Only about half strongly agree they do. Picture a manager who sees potential in someone. She quietly builds a future for them in her head, a promotion, a bigger role, real growth. She never says a word about it out loud. Six months later, that person takes a job somewhere else, and the manager feels stunned. We had plans for her. Except she never knew those plans existed. No matter how good the intention behind it, a private vision never becomes a promise.

Work and family run on the exact same principle, even though we rarely talk about them side by side. You have to actually speak clarity out loud for it to count as clarity. Everything else is just a guess two people are quietly making about each other.

Expectations vs Assumptions: The Question Worth Asking First

Sit with the same question before frustration builds any further, whether it concerns your own kid or someone on your team. Have I actually said this out loud, clearly, to the person it concerns? Or has this person never actually gotten the chance to hear it, question it, or agree to it?

Clarity isn’t criticism, even though it can feel that way to offer at first. Criticism tends to show up after the disappointment already has. Clarity shows up earlier than that, early enough that someone still has room to respond, adjust, or simply understand where you’re actually coming from. A kid across your own table and a team of twelve both run on the same rule. Both leave you wondering why something that felt obvious to you never seemed to land.

Before you hold anyone accountable for an expectation, ask yourself honestly whether you ever actually made it clear. If the answer is no, nobody ever actually agreed to anything in the first place. It’s an assumption wearing the costume of one.

For more on building clarity into how you lead, including the mindset behind Busy Is the New Fine and other reflections on leadership that holds up in real life, visit the Insights blog.

FAQ

What’s the difference between an expectation and an assumption?

An expectation is something you’ve actually said out loud and the other person has had a chance to hear, question, or agree to. An assumption is something you believe is expected of you, or believe someone else should already know, without either person ever actually saying it. Assumptions feel just as real as expectations, but only expectations can actually be met.

Why do unspoken expectations cause so much friction in families?

Unspoken expectations cause friction because each person is reacting to a private, unconfirmed version of the relationship instead of an agreed upon one. A parent may feel disrespected by a choice their adult child never knew mattered to them, while the adult child feels blindsided by a standard they were never actually told about.

How do I set clear expectations with an adult child living at home?

Say the specific expectation out loud, rent, chores, a timeline, a job search goal, rather than assuming it’s understood. Actions have to match the words too. If the stated expectation is independence but daily life still runs exactly like it did at 16, the real message being sent is that nothing actually needs to change.

Why do so few employees know what’s expected of them at work?

According to Gallup, only about half of employees strongly agree they know what’s expected of them at work, a pattern that holds across industries and generations. It typically happens because managers assume expectations are obvious once a job description is written, without ever having the direct, ongoing conversation that actually confirms it.

Frequently Asked Questions

If your day already feels out of control before your feet hit the floor in the morning, you are likely the kind of person I work with.

You may be a business owner, leader, manager, or professional carrying too much, fixing too much, and feeling like too much depends on you. Erin Treacy Coaching is for people who believe in a people first way of leading and living, and who want stronger communication, better accountability, healthier systems, and a more productive and meaningful life.

This work is for people who are tired of constant reaction and ready for a better way forward.

Coaching is a strong fit when work feels heavier than it should and you know something has to change. Most people reach out when they are tired of carrying too much, fixing the same problems over and over, or feeling like the business cannot move without them.

You may be the bottleneck in your organization. Your team may not be showing up the way you need them to. Performance may feel inconsistent. Communication may break down too often. You may spend more time reacting than leading. By the time the day starts, you already feel behind.

Coaching creates space to slow the frenzy, see what is really driving the problem, and build a better way forward. Sometimes the issue is not the people. It is how the work, expectations, and communication are set up around them. Coaching gives you a clearer view of what is happening, what needs to change, and how to move from constant reaction to steadier leadership.

Servant leadership focuses on how a leader shows up for the people around them. It is about listening, supporting, building trust, and leading with care.

People first coaching includes those values, but it goes further. It also looks at how the business or team is set up for people to succeed. That means roles, expectations, communication, training, accountability, and everyday systems.

In other words, servant leadership often focuses on the heart of the leader. People first coaching looks at both the leader and the environment around the team. A leader can care deeply about people and still have a workplace full of confusion, inconsistency, and stress. People first coaching works to align leadership, structure, and culture so people can perform well without everything depending on one person holding it all together.

Both. Erin works with individuals in one to one coaching and also supports teams through workshops, leadership development, and workplace training.
Yes. Many workplace problems are not caused by a lack of effort. They come from unclear expectations, weak communication, and pressure people have not been taught to manage well. Coaching focuses on building the habits and conversations that create steadier performance and stronger trust.
Yes. Coaching can support people who feel stretched thin, overwhelmed, or stuck in constant reaction mode. The goal is not to push harder. The goal is to create clarity, better decisions, stronger communication, and work habits people can sustain.

A clarity conversation is a safe place to talk honestly about what the frenzy looks like in your work or life right now. This is not a sales call. It is a starting point.

We slow things down, look at what feels out of control, and begin to understand what is really driving the stress, pressure, or frustration. You do not need to come in with polished answers.

The goal is clarity, understanding, and a better sense of what kind of support makes sense from here.

About Erin Treacy

Erin Treacy is a leadership coach and consultant specializing in people-first approaches to professional development. With over 15 years of experience, she helps leaders and organizations build cultures where people thrive and businesses succeed.

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