You son is very mature. He had enough, and he is doing what he needs to do. He is deciding his life and future for himself, and deciding what he wants to allow in that life of his.
Someone is raising him well. He knows what he deserves in his life, and he's doing his best to make sure he gets nothing less. I wish I was as smart as he is right now.
Perhaps you should learn from the example that he is setting for you?