I really know nothing about this, but....

I'm in SE Asia where there is very little smoking to be seen. But I do see these vape things. All of the sudden a random person is in a big cloud.

Not too long ago I was out to dinner with friends. We where outside and the people a couple of tables away were doing this and the "smoke" billowed into us a few times. I was thinking it was pretty nice! It was some kind of fruity seeming thing and was not really bothersome like actual smoke.

I have not noticed this with kids here, but I have definitely noticed it.