The difference between a child and an adult is really in the level of responsibility one has. Children don’t pay taxes. And when you start filing self returns, you can never return to being a kid. I personally like playing video games, this is my form of entertainment but most of my days I spend doing my creative project. Video games that I play are full of sex and violence. So, you cannot call that childish. My creative project involves a heavy dose of esoteric knowledge, history and philosophy. Most children aren’t able to grasp this amount of knowledge. At one point you grow out of being a kid.