I disliked onions. My mum used to buy special 'turnip onions' and for years I believed this was a real type of vegetable!
A childhood belief about general

others believed things like this
- When I was a child, I used to believe that onions came from tangerines.Anon
- When I was a kid I loved to eat onion rings, until I realized that they were made with onions.— Beth Pärssinen
- To get me to eat liver and onions, my parents used to tell me it was brown chicken. And I loved it.— Mallory
- I used to beleive that liver (as in liver and onions and gravy) was rhinocerous meat.Anon
- I used to believe that if I pumped in my sleep and breathed it in I would turn into a rotting turnip!— Quako
- I used to believe that unicorns were real creatures. I thought they were just another type of horse.Anon