, Maddus Mattus wrote

But I don't think it's up to us to put a ban on smoking near your own children. We can better help them become aware of their behavior and help them quit, then putting a ban or tax on smoking.

I'm not sure there is any adult in America who smokes who isn't aware that it's bad for them and the people around them.

The problem is that people do it anyway - and some of the people around them (e.g. their children) have to live with the consequences of someone else's selfish and reckless behaviour.