That is really cool OP. As a father of 3, I've seen some interesting drawings come home from school.
Back when my son was ~ 4 I found a drawing he made of a battle scene with tanks / helicopters / airplanes etc. I asked him what it was and he said it was Vietnam. At that point I wondered if he was a reincarnated Vietnam USAF pilot!
Another odd drawing he made was when he was around 7, he's 8 now. It was another battle scene with tanks / planes / helicopters and people. On the top he wrote, and subsequently scratched out "white people win", and then wrote "black people lose". He titled it white vs black people. I was freaking out when I saw it, and called his teacher to see if they were learning about anything Martin Luther King related (it was around January), and she said no. I asked her to keep an eye out to make sure everything was on the up an up. I think it boils down to a kid just being a kid without any of the preconceived notions we have of race etc.
One last drawing of his - It was a "GO USA" drawing with the starts and stripes etc. He made around September 11. On the bottom he drew the two towers with a plane flying towards it. I'm amazed at his understanding of all of this since he was born in 2003.
He wrote a letter to people who deploy overseas from my work. He asked me how to spell the word Mercy, and I was surprised by that and wondered what context he was using it in. I read the letter after he was done and it had the usual stuff "thank you for protecting us, come home safe we need you" and then he had this killer line in there "Go USA, No Mercy, Go Freedom".
He's a real loving kid and a great help around the house. lol kids.