My parents told me romantic relationships weren't serious until you got to high school (we all know why).
Because of this, I thought it was weird that kids were already having crushes and in some cases even dating in elementary school. In my mind, romance was this big kid thing that you got into when you were older, not when you were a kid. Despite the fact most kids have their first crushes at five years old. FIVE.
Probably would've figured it out sooner if it weren't for the barrages of "you'll like when you get older."