Does this character seem interesting or balanced?

I actually really love these types of characters. Matured before the stereotypical age, that's the best character. One thing though- you probably are going to do this- make him learn humility. Maybe he actually starts investing in the stock market behind his parents back, get's loads of money; put's it into something, etc. etc. Learns something from it. But yah, I love where you're going with it.