> one is ... destroying the environment and the other is an annoyance Cars are also much more useful than smoking. (Compare what'd happen if cars were banned w

> one is ... destroying the environment and the other is an annoyance Cars are also much more useful than smoking. (Compare what'd happen if cars were banned with what'd happen if smoking was banned.) But of course you're right, cars are a problem. At least there are emission limits, and electric cars are being worked on. That doesn't mean we shouldn't try to get rid of smoking. These are separate problems, they can be worked on in parallel.