I'm 60 years old and I can honestly say some of the best philosophical discussion I've had are with pre-schools. The only identify they know is ME! and its not even me against the world - It's just me - the world is part of me. A short story... I have a bit of a beer belly. A 4yr old once came up to me, touched my belly and said "What kind of baby are you going to have?" I said "Elephant". Her answer was a quick laugh "No you are not. Boys don't have babies"