My country banned smoking in all public indoor spaces almost 20 years ago. As a smoker at the time I thought it was ridiculous, felt that my rights were being violated and thought it would never last. The quality of life improvement it made is massive. Today I vape rather than smoke but wouldn't dream of doing either indoors or being where someone else is. It was 100% the right move. Not quite the same thing but you sometimes can't really understand the benefits of an alternative to the status quo, even if you understand it logically.
I don't generally mind the smoking bans, but I wish there existed some indoor spaces where it could be done. They are very limited and mostly exclusive.