How does using it harm others? Unless you’re straight up locked in a room with a chain smoker for a few years it’s about as bad for you as sitting in traffic or near a camp fire.
Education is already working, as a very small portion of western nations smoke now. In the USA it’s less than 9% and that’s for all tobacco users which includes vaping. So cig smokers are probably around %5 at most now. Tobacco is a non-issue and is blinding us from other problems.