I guess that liberty was plenty abused on every non-smoker in a non-smoking area, that ended up coughing in clouds of smoke anyway. Smoking affects everyone around you whether you want it or not, and while you may smoke for 50 years and end up being perfectly healthy, some may get cancer from it, even for a very small dose.
Which I'm arguing are disregarded most of the times by most smokers. I do encounter cigarette smoke in my day-to-day, unfortunately. And unfortunately it's always the same places, mostly bars and restaurants that have outdoor spaces. Places where I'm supposed to smell food I pay for, and I end up smelling smoke instead.
Last time governments tried to force people to do something for their own sake, you saw how it ended (COVID). If people can't start smoking cigarettes, they won't get hooked up, so gradually at least regular cigarettes will be phased out. Vapes are still controversial, but as a non-smoker with a very sensitive nose, vape smoke is 10000x better than cigarette smoke. It doesn't cause me to cough, it doesn't contain harmful chemical compounds, it doesn't soil clothes nearly as much, and I can still smell food at a restaurant.