Besides that, sun light is very healthy, we see all the time articles about vitamin D, I think the way of living of Italians and Spanish of being more in the outside because the good weather might influence too, hard to know for sure.
In fact, moving to NYC I was struck by how I still saw people smoking because of how infrequent it was elsewhere
Nowadays it's generally not cool anymore, it's seen as a vice and people will sdmit so when they ask if it's okay.
I also noticed that one big factor that actually worked in discouraging teens from even starting is the "uncool" image built around smoking.
Unfortunately it look like the coolness factor is moving to electronic cigarettes and there's not much data to discourage the use yet.
https://en.wikipedia.org/wiki/List_of_countries_by_cigarette...