Purely Objective

On a purely objective matter, if you really wanted society to stop doing something bad for their health, you'd encourage as many people to do it as possible and then stop trying to convince these people to change ways. This is to ensure that when the complications kick in, more people from the next generation will realize how horrible it is first hand. Because really, who do you listen to, somebody in their deathbed or somebody who's alive and kicking and says "don't do it, it'll be hard to quit"?