I used to believe that all old people eventually become demented when they get old enough. This was before people had identified Alzheimer's disease, so people couldn't easily explain why some old people became more and more incapacitated mentally. Anyway, I ued to wonder when my grandparents would start becoming forgetful and losing their minds...
A childhood belief about getting older

others believed things like this
- I thought being mentally challenged meant you couldn't do any challenges with peopleAnon
- I used to believe that all old people got the disease "OLD TIMERS DISEASE" Instead of alzheimers disease :D— MollyJohnson
- That Alzheimer's Disease was Old Timer's Disease.— Todd K
- When i was younger up untill i was like 8 or 9 i thought that famous people didnt poop only normal people!!!— kaitlin
- I used to think that "cross-eyed" meant that people had X's for eyes, like dead people in cartoons.— Tim
- I used to believe that tv people were tiny famous people that lived inside that box with a window called TV.— Miguel Horacio