I used to believe that mustaches were grown from really long nose hairs.
A childhood belief about hair

others believed things like this
- When I was younger, I used to think that moustaches were just very long nose hairs.— Mike
- I used to believe that nose hairs were the other end of hairs on top of your head.— Walker
- that sneezes were caused by little pixies crawling up your nose and brushing past your nose hairs— Joanna
- I used to think a mustache grew out of your nose hairs. I tried to let mine grow, but it didn't work. — Barry
- I used to believe that all men with mustaches were rich.— Katie
- When I was young I used to think all men with mustaches were bad.— Catie