When my family was at a mall or movie theatre or some other public place, my parents would often verbally express their aggravation with the "crazy teenagers" being loud or obnoxious or rude. For a long time, I thought the word "teenagers" simply meant people who were rude or just plain "bad."
A childhood belief about getting older

others believed things like this
- Once I thought these two teenagers who used to wash my mums car lived in our attic. Hahaha!— Roxanne
- I used to think that teenagers had really interesting conversations.— Nathan
- i used to believe that when teenagers dated, the guy had to be older than the girl.— claire
- I held my breath near cemeteries because I thought it would be rude to inhale spirits. Anon
- As a child, my twin sister and I used to pronounce `Spaghetti' as `Mastaghetti'. Sounds a bit rude, no? Anon
- Someone told me People and fish went to the same place.I thought they meant humans get flushed— MrK