Singapore and AFAIK Thailand banned vapes altogether. And it seems to be actually enforced.
They have completely different grounds for it but still, there's already some movement in this space.
In Thailand, regular smoking is shunned by the public but vapes are literally everywhere.
I've even seen 15-16 year old boys in Thailand pick up their girlfriends on motorbikes, race their friends to the food court, drink a couple of beers and vape once they get there, then ride their girlfriends home again while still under the influence, all without helmets mind you.
Not. I've seen young teenagers vape in Thailand, that's how enforced it is. They only catch foreigners from whom they can extract thousand-dollar bribes.