Well, there are a lot of dangerous things that are legal, but I think cigarettes are one of the only things out there that do nothing BUT directly harm the user and those around the user, and yet are not illegal. There are only two reasons why they are legal right now: the pleasure of those addicted to them, and the money they bring-- to the government mostly. So it depends. Do you think that the pleasure of people who are addicted to the cigarettes and the money brought to the government is more important than the health of everybody who smokes, or who is close to someone who smokes cigarettes? Personally I think everybody's well-being is more important. I mean, suicide is technically illegal, or at least the assist of a suicide is, and cigarettes literally kill you, so there's that. Not to mention a lot of people are hospitalized with cancer or other sicknesses because of cigarettes. So making them illegal would probably be highly unpopular with anyone who DOES smoke, and the people who make money off of them probably wouldn't be happy either, but I think illegalizing them would be for the best.