Lots of anecdotal statements from you but no indication of what you would propose to do about the issue. Legislate away individuals' ability to engage in behaviors that can harm themselves? Or acknowledge the right to liberty?
Since neither the gummint nor people like us can save obvious suicides from the side effects of their own decision to die sooner than they might, I allow everyone the choice to chose their method of dying and when. You and all humans are free to chose our desired or optimum life span. Choosing it does not make it so, however. My only point in my post is that emphysema is a terrible and very frightening way to go.