I don't smoke so it is impossible for me to understand the need that some people have to smoke or to vape. It is a very widespread thing in SE Asia though and a lot of that has to do with the fact that vapes and cigarettes are very cheap and accessible. You are also allowed to smoke almost anywhere that you want. When vaping hit the scenes a few years ago, a lot of people transitioned away from cigarettes and towards vaping and to me, this was an improvement because I would much rather smell strawberry or some of the fruit smell than that awful ashtray stink that comes along with traditional cigarettes.