Notwithstanding demurrals by denialists, seat belt laws and motorcycle helmet laws do reduce injuries and deaths overall, and quite significantly, so a case can be made that your 'personal choice' is costing other people money for an activity that the government is legitimately mandated to oversee for the good of the general public. No such mandate exists for things like skiing, snowboarding, or walking down the street.
I hope to god it never does. If it's done by specific resort rules, ok, but not by our government and as a whole across a state or nation. This is why I believe it's another step towards insanity. If they mandate helmet laws, then why not wrist guards, ass pads, knee pads and the rest. All of which, if injured, could possibly be a very serious injury. Where does it end?