When I was a kid riding in the car, I'd notice that a lot of people had mailboxes with the word "Post". I though that was the last name of the family that lived in the house, and couldn't figure out why there were so many people with that last name.
A childhood belief about in the street

others believed things like this
- I used to believe that tv people were tiny famous people that lived inside that box with a window called TV.— Miguel Horacio
- I thought when i was a kid, that all mailboxes had tubes that brought your mail to the person u sent it to.— Andrew
- when i was 4 my mom told me we lived in Indiana and i would tell people we lived in DianaAnon
- I used to get mad when people used the word "native" because I thought they were making fun of my name!— Nate
- I used to think that the word blurb was a noise that people made when being sick. Bluuuggghhh.— Natasha
- I used to believe that my immediate family were the only people in the world that farted— Rainbow