I used to think that if you had a baby and wanted it to be the opposite sex -- e.g., if you gave birth to a boy and had wanted a girl -- you could just have a sex change operation performed on it and, voila! It's a girl!
A childhood belief about reproduction

others believed things like this
- Until I was five, I used to think that women gave birth to baby girls and men gave birth to baby boys— Cassidy K
- When i was younger i thougth that when you grew up you could decide whether you wanted to be a girl or a boy. Anon
- I remember a girl in my kindergarten class told me she wanted to be a waterfall when she grew up.Anon
- I used to believe that mommies gave birth to girls and daddies gave birth to boys. — Jackie
- I used to believe that if I could kiss my elbow that I would turn into a girl (the opposite sex).— Rusty
- When i was little i thought that the mom's gave birth to the daughters and the dad's gave birth to the sons. Anon