(This is actually a health-related question even if it does not seem like it.) The National Hockey League with the support of the players’ union requires that players wear helmets while on the ice. Why does the league have to mandate the wearing of helmets for such a dangerous game? Does mandating helmet use increase or decrease the utility of the league’s players? Is there a connection between this situation and the situation of the individual mandate from Obamacare (requiring everyone to have health insurance)?