I used to think that all cats were girls and all dogs were boys. This seemed logical because when we were kids, I always wanted a cat and my brother always wanted a dog. I was very confused when ever I came across a female dog or a male cat. I still called them he/she as I thought they should be.
A childhood belief about cats and dogs

you weren't the only one
215 of you believed this
- I used to believe that cats were all female and dogs were all male.— Rachel
- that cats were only girls and dogs were only boys. I definetly didn't get the whole reproducing thing yet.— Jamie
- i used to believe a dog was the male version of a cat.Anon
- I believed that all cats were female and all dogs were male. — Biologically confused
- i thought cats were girls and dogs were boys. Anon
- i used to believe that all cats were female and dogs were male!Anon