At one point when I was little, I believed cartoon characters were played by actors (not voiced, actually played by them, by people in costumes) like on sitcoms. My mom quickly set me straight.
A childhood belief about cartoons

others believed things like this
- I used to think that the laugh track on sitcoms were the camera men, directors, other actors, ect. laughing.Anon
- I used to believe that invisible giants played with us like I played with my dolls. — Alexandria
- I believed that the pictures on my nighties came alive at night and played in my room while i was asleep!!Anon
- I thought cartoons were real, I remember asking my mom why there were lines around the "actors" in a cartoon.— Steven Graziano
- When I was a kid I used to believe that cartoons were people dressed up in special costumes.— Sarah-Jane
- When I was little I used to believe that if I played with fire, then I would wet the bed. — Danielle