> Your personal health is none of the government's business. In theory, maybe. But the government's main business in practice seems to be the continuation of i

> Your personal health is none of the government's business. In theory, maybe. But the government's main business in practice seems to be the continuation of its (government's) existence, and having somewhat healthy population, and having population at all, for that matter, really helps -- especially if the measures intended to improve the public health/safety don't really cost the government much if anything. > In a free market, it's in the interest of the manufacturers to take care of their customers [Citation needed]. Anyway, the car market is not free: every car manufacturer has non-infinitesimal market share, and that opens the possibility of all kinds of interesting market manipulations.