Excellent points. That is one of the primary debates right now. Leagues are looking at how much they can change the rules of the sport to make the spot safer. There is a great deal of resistance from some because these changes would change the game immensely. One of the biggest debates is fighting in hockey. Hockey is the only sort that allows full fist to face fighting. These blows to the head can be extremely dangerous. Many want to eliminate fighting but hockey purists want to preserve the history of the game.