Forgive my pessimism, but as long as football continues to attract these types of "You hit like a girl!" gorillas to teach the game to children, no amount of Heads Up football is going to make the sport safer.
I grew up watching football, and my two sons, ages 18 and 12, are no different. In my family, football is more than a sport -- it's a passion. After my sons asked persistently, I decided to let them play the game.