>>402374 (OP)children want to see sex, it's a natural part of their healthy social development. children are naturally curious about sex, and the other sex, that's why from around the age of 6 some kids start to seek out as much as they can learn about the subject in-lieu of play. the ultimate goal of a child is to become an adult, and that's why they seek to learn things that adult know and imitate what adults do.
tl;dr: kids want sex