When I was growing up, my sister was friends with the two girls who lived next door. I always thought that the two girls weren't related to each other because it looked like they had two different mothers. It turned out that they had the same mother, she just looked different to me in the morning because she hadn't put her make-up on. A little eye-shadow makes a difference, I guess.
A childhood belief about general

others believed things like this
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I used to believe that all my aunts were related to my mother and all my uncles were related to my father.— Mandy
- when I was a kid, I used to believe that only girls could be my friends and all other boys were my brothers.
— rajat - That boys turned into women when they became adults and girls turned into men when they became adults. Anon
- All the people that lived in Scotland were girls— The Ice Cream Sandwich Monster
- My mom said she had eyes in the back of her head. I looked and looked, but never found them.Anon