"Well, if a "near-death experience" is not enough to get people to change their lifestyle and comply with some new rules, I don't know what can."
Most who have these experiences demonstrate temporary change, then fall back to old behavioral patterns. Some even turn the experience on its head, claiming they've "cheated" death.
Behavioral compliance should be tied to insurance rates, and chronic noncompliance should lead to loss of coverage; that'd solve two problems at the same time, quite efficiently, I would imagine.
aj