It's not about me at that point. Sure, I think flavored cigars are dog rockets, too. But it's about liberty to me. Some people enjoy the infused cigars, come people like the candy sticks. That's ok, they should be able to. Instead of cracking down on manufacturers and suppliers, by making them illegal, they should be cracking down on B&Ms that sell them to minors, and parents should be teaching their kids about the dangers. Sadly, there is no way to enforce that second one, so you have to let the individual decide.
To protect everyone's liberty you have be willing to let some people harm themselves with that liberty.
I say that smoking ages should be the same as the age of consent laws. If they're old enough to consent to getting penetrated/penetrating, then they can decide if they want nicotine in their body. Alcohol is different due to it's stronger effect, IMO, and the chances of something going badly.