As the child of two heavy smokers, I think this is a great idea. I'd love it to be brought in here. I'd even go further and say that it should be banned now for all ages.
Vapes could be available those wanting/needing the nicotine hit. They are far less offensive.
My father did give up his pipe in the last few years of his life but COPD had already set in and it killed him in March this year. ☹️ Something like 99% of cases of COPD are smoking related. Passive smoking is also a risk factor for it, I believe.
Having seen what he went through I would support this move. It was really shocking and traumatic.
My mother is also suspected of having COPD. Having had to spend several weeks looking after her while my Dad was in hospital I would be very surprised if she doesn't have it. She is a vulnerable person, very reduced mobility now to the extent of needing a wheelchair when out of the house. She also cannot stand and cook for herself. Still she insists on smoking her 40 cigarettes a day (at least, probably more). Pigs are more likely to fly than she is to stop smoking.☹️🙄 The only thing that might have any chance of stopping her, or at least getting her to use her vape, would be if it were made illegal to both buy cigarettes and to smoke.
I would feel much happier whenever I have to go to my mother's house if she simply couldn't smoke. It would be much pleasanter and healthier, and I wouldn't emerge stinking of cigarettes. At the moment I have no choice.