I got it too, and it's fun. I like driving around and shooting at other cars and when they speed off, I give chase and do the PIT manuverand make them crash. I also like having major wars and blowing up stuff.
BTW, my parents got the game for me on my B-day, and my mom is now just finding out about the blood and stuff, but I just think 'its a game, just for fun, and I'm not going to go around shooting people and stuff.'