Having an older sister when I was four lead me to believe that if things progressed logically I would first be a boy, then a girl then a man, then a woman because, well, it just followed a pattern didn't it.
I thought I had it all figured out, I argued my point, my sister said I was wrong, she said, "go ask mom" ... my argument deflated.
A childhood belief about getting older

others believed things like this
- a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon
- My sister just recently realized that the lyric "more than a woman" wasn't 4 letter woman!— Anne
- when i was really young, i couldn't figure out why i can't get older than my older sister.— angela
- When I was little my sister told me that if I put a C.D. in the wrong case, it would mess up the C.D.'s songs.— Torrie
- I used to think that Cain and Able were brother and sister (with Able being the girl).— Duh
- My oldest sister is 15 years my senior. I used to think that she was older than my mom.— Callie