I was about 4 .I thought every female in the family would turn into a witch when she turned 20 and turn all the men into puppies or kittens.
A childhood belief about witches

others believed things like this
- I used to think that to desex an animal meant to turn it from a male to a female or female to male.— Phil
- When I was young, I thought that when you turn the blinkers on in the car, it made the car turn.— Cassidy
- When I was six I thought that when all puppies grew up they turned into golden labradors. — Marieka
- Until about age 11 i thought that "Hush Puppies" the shoes were made from real puppies!— Laura
- i used to believe if i eat fish it would turn my stomach into a fishtank and make me turn into glass.Anon
- when i was little i thought my cat would turn into a lion when he got older.Anon