When I was 4 or 5 I used to believe that our clothes were getting smaller and not that we were getting older & bigger :-) !!
A childhood belief about getting older

others believed things like this
- I used to believe that clothes got smaller if you didn't wear them very often.Anon
- I used to believe that everybody who was bigger or taller than I was always older than me.— Stano Finji
- When I was smaller I used to think that if I broke the Tv the characters would come out x]Anon
- I used to believe a pickle was a smaller version of the cucumber.Anon
- I used to believe that wearing a bra that was too small would make my boobs get smaller.— Aretia
- When I was a child I used to believe that the things in my room became smaller but it was me who was growingAnon