I used to belive that babies "acquired" their head hair during birth and that's why mommies have "hair down there."
A childhood belief about giving birth

others believed things like this
- i used to belive that pubes were hair fallen from your head and glued on
— marcus - I believed that if you ate a piece of your own hair, a new strand of hair would grow on your head.— Ryo
- I used to think that everybody's hair was black and if you had blond hair, you dyed your hair.— ~_~CoolKid93_~_
- I used to believe that mommies gave birth to girls and daddies gave birth to boys. — Jackie
- i used to belive that if my brother pulled a hair out of my arm i would die in 5 seconds — heidi
- I used to hold my hand over my hair whenever i left the house and it was windy incase my hair blew away— lisa