When I was young I used to think all men with mustaches were bad.
A childhood belief about appearance

others believed things like this
- I used to believe that all men with mustaches were rich.— Katie
- I used to believe that mustaches were grown from really long nose hairs.Anon
- when i was young i used to believe that the sun goes down behind the mountains into the earth— confused
- When I was (very) young, I believed that sausages were Pig poo. Yum.— CrystalTips
- When I was young,I used to believe all old people were witches..........— Baby
- When I was young, I used to think I was Sailor Moon— Emma