I was convinced that you had to water your hair to make it grow, like plants. So the more you shampooed your hair, the longer it would grow.
A childhood belief about hair

others believed things like this
- I believed that if you ate a piece of your own hair, a new strand of hair would grow on your head.— Ryo
- When I was a kid I took two showers becaue I thought my hair was a plant and needed the water to grow— Tim
- I used to believe that after I cut my barbie's hair, they will grow again. They've never grown :(— Duda
- I used to believe that my head was filled with hair waiting to grow.— Poppy
- I used to believe that if i cut of my Barbie dolls hair that it would grow back.— Zena
- I used to believe that if I cut my dolls hair it would grow back just like mine did after a haircut. — diamond girl