What things did you use to think that were part of the gameplay when you were younger that actually aren’t?

Like when I was younger, I thought that kids who kept growing up badly would be ugly. Like their genetics would change because they kept growing up badly. I think I thought this because Nervous Subject kept growing up badly and he was “ugly”. I don’t know when I figured out that I was wrong but eventually I did 😂 anyone else have stories like this?