You've missed the point. Lung cancer, as MickG rightly points out, is mostly (90% male, 65% female according to the Cancer Council) caused by voluntary smoking. And Governments of all persuasions, do sweet FA about it - and it sure as hell doesn't rate a mention in the papers the way Covid is racking up column inches. It's just..."accepted", as part of everyday life.
Ok, so the ridiculous price of cigarettes, confronting pictures on packets, plain packaging, bans of smoking in almost all public areas and venues now as well as bans on smoking around kids etc etc is the gov doing nothing.... I was a smoker many years ago, I quit because it became too hard due to the restrictions and cost, as well as being dumb for my health. You also increase a number of premiums and some doctors may defer surgery on you if you smoke, how many forms do you fill out regarding health that refer to smoking status, why, because many things recognise it's bad for you.