Neither is trying to conform your fellow citizens to your personal lifestyle choices.
Depends on the context(s) involved in terms of reference groups; larger group contexts; group politics involved etc.
In some respects, it might be a better 'survival thing' to encourage smokers to smoke like chimneys around their children. Should decrease their numbers by hastened deaths eventually.
But I really don't feel that way. I think the defenseless children deserve some champions.