Trickle down effect isn't the only consideration. Here in Canada,for the most part we have government health care, as in some other countries.

That is paid directly by the taxpayer, and the costs are huge, which is one of the reasons I support helmet usage, seat belt laws, stiffer drunk driving penalties and higher taxes on cigarettes. It's not a matter of judging these acitivities, or the individuals that engage in them.

However, I don't expect extremes like requiring full body armor.