And BTW those that are arguing about the individuals "right" to engage in unsafe activities that don't endanger anyone else but themsleves, may want to consider the feelings of the daughter and husband that watched the mother die in the incident that sparked this thread.
Sorry, but that's not a valid argument in my opinion. Stepping in to protect people from themselves is merely the first step in abdicating personal responsibility. This is the attitude (feeling a need to protect people from themselves) that leads to all the sillt law suits most of us want to eliminate. Draw the line here, stop trying to protect people from themselves.