Because cigarettes are harmful to health.

Some people say that this is an economic problem, and the tobacco industry can generate income for the country. This is only one of the reasons. People in developed countries in Europe don't care about the money brought by cigarettes. Don't they just want to control smoking, not ban it? First of all, cigarettes are different from drugs. They are only harmful to health, but they are legal commodities and have many consumers. If the country bans the production of cigarettes with a stick, it will deprive citizens of their legitimate rights to buy and sell, which is quite undemocratic. And once smoking is suddenly banned, there will be many social instability factors. Think about this. So the problem of smoking can only be controlled step by step, and it is impossible to ban it at once. For example, the problem of drunk driving is more prominent now. Should the production of alcohol be banned? And it's not good for the human body itself.