It is incumbent on us to live healthy lives and to teach our children to do the same, but when it comes to other people I've always kept my mouth shut.  That is their business and just as I stay out of their morals I stay out of what they eat or smoke or whatever.  (As a matter of fact as part of trying to avoid being judgmental I don't even pay attention to such things).

Now regarding some of the responses I've gotten, a lot of people don't get it and keep with the mantra that everything dies therefore it is not an evil and further that therefore we must die.  This is an empirical conclusion, but not one that is a logical necessity, and one I think that if minds could be changed and resources accordingly redirected could be fixed.

My point (agenda) here has been more limited -- just to get people to see that death is wrong.  Not that suicide and self-sacrifice are always wrong (wrongs often have worse wrongs to override them) but that all else being equal death is wrong.

I read a novel the other day about a woman who jumped off a bridge in London and became the goddess of the Thames -- the old god had abandoned the place as too polluted.  Of course the Thames is now one of the cleanest industrial rivers on earth, and she took credit for it -- the pollution was not something that "just has to be accepted," but a wrong that people can do something to fix.