When I hear people criticizing obesity in the US, and making the individual fully accountable for it, it makes me laugh a bit. The industry/way of living, and education give (junk) food an incredible place/power. So there are consequences, and the solution should be found by the society, including some laws, or better: education. And getting it right is likely going to be an interesting challenge.
Back to diving. I indeed think Walter and Dr bill said all. Why dr Bill?, because I fully agree with the hypocrite statement on: why would I care if other kill themselves doing stupid things … as long as it is not my children/family/people I care.
Regarding special laws to limits activities, finding the right balance will likely be very difficult. In regards to stuff done in Europe, I can provide one good thing (to me): many years ago, sailing/motor boating was kind of full freedom for all. Then the number of fatalities increased, while people were caring less and less (lack of training and experience). For many years, the rescuers were doing it all for free, sometimes in very difficult conditions, rescuing people and boats.
If I’m still right, now it is over, and rescuers can charge if they rescue the equipments (surf board, small beach boats, or larger boats). Laws have changed because there were abuses. During the high seasons, when there are speed limits near the beaches on the Mediterranean sea, people get speeding tickets. Some people find it outrageous. I certainly do not.
I don’t know how this can apply to diving, it is probably more difficult because the nature of the sport – but to some extent, adding a little bit of restriction here and there (like more training required to do x/y/z) may not be that bad, in some areas at least. Not easy I agree, and from a personal point of view, I’d favor education much more than law enforcement.