A ban or high restrictions is a good measure to diminish the effects of smoking in society, because unlike the spreading of information (which is usually done by schools / clubs), governmental restrictions or a total ban will ensure the access of measures to the whole population. Through a ban on advertisement or higher taxation those citizens not involved in active educational structures get educated about the problem.

In a democracy the people elect leaders and trust them with a term, where their duty is solely to look after the wellbeing of the country and its citizens. The politicians, having the resources and time, are well equipped to make a better and more informed decision on activities dangerous to the individual, others and the society. Therefore one of the principles is, that elected representatives have to make sure their citizens get the best possible protection in society. Even if this infringes on some of their rights. That is why taking hard drugs and breaking the speed limit are also illegal. It would therefore be reasonable to ban smoking or limit with different means the usage of tobacco - an activity which kills millions of people each year.

Precedent is that if a company produces food that is poisonous or a car that fails safety tests, the product is immediately taken off the market. Since all cigarettes and other tobacco products are poisonous and potentially lethal, they should all be taken off the market. In short, smoking should be banned or very harshly regulated.