Incrementalism.
Yep, it seems that these smoking bans are incrementally going to make it illegal to smoke anywhere.
So now they are up to multi-family rental units. The next step will be multi-family condos, even for owners of the condos. Then the next step will be rental houses. Then the next will be owner occupied single family homes.
They are doing this one step at a time. And to think it started as having smoking or non-smoking sections in restaurants.