I brought my son to his first game when he was 10 or 11, spent all morning at the Pinto and it was fine. In fact all of the people there, before as well as after the game, went out of their way to make sure he was well fed (his favorites were the pizza and the bacon cooked on the Pinto, and still are! ) and taken care of. Of course you will see drunks there, it is a Bills home game after all. If you tailgate at all you are bound to see that. And the ketchup ceremony, how could any father not let his son experience that at least once