Thank You For Smoking

I’m a smoker myself and I agree that smoking is bad and shouldn’t be allowed in restaurants and so on.
But one thing I don’t agree on. If you want to have big taxes on cigarettes, why encourage everybody to stop smoking.
I mean in the calculations for the cash flow of the government they relay heavily on these taxes. But they will ban smoking everywhere, so that doesn’t make sense to me.
I’ll probably quit smoking in a very short time, so I don’t worry too much about it.