I have a slightly different take on this. Tobacco is a product that is sold by producers who know it is both highly addictive and extremely bad for their custom

I have a slightly different take on this. Tobacco is a product that is sold by producers who know it is both highly addictive and extremely bad for their customers' health. That should be illegal. But it should not be illegal for people to consume (as long as they don't harm others via second hand smoke). The principle is simple: harming other people deliberately is wrong. (Harming yourself is merely stupid). So I would ban the manufacture and sale of tobacco, but make it perfectly legal to grow your own. Smoke as much as you want. Just don't harm others.