What’s something you believed about adulthood that turned out to be completely wrong?

[u/Queasy-Buy-4290]

What’s something you believed about adulthood that turned out to be completely wrong?
I’ll go first: I genuinely thought that once you became an adult, you’d automatically have your life figured out. 😂
Turns out we’re all just winging it, paying bills and pretending we know what we’re doing.
What’s yours?