Wouldn't it be nice if instead of just bars with alcohol, there were establishments for people to consume cannabis while eating, playing board games, and socializing?
If anything, cannabis seems like a much better (and more profitable) drug around which to build a leisurely establishment.
Its hard to justify it for the same reasons we can't have Shisha bars and smoking lounges (at least where I live): 2nd hand smoke.
I can, as a non drinker, go to a bar and have myself a soda, and leave there as sober as when I walked in. If I do that in a room where everyone is smoking up, I will get high from the second hand smoke whether I want to for not.
I mean, why not just have a general social club with coffee/food, games, etc, and just step outside for a puff?
The smoke issue has been solved. I've been to cigar lounges that do not smell outside and barely smell inside, despite over a dozen people smoking sotgies in there. Massive HVAC systems and filters handle it all.
But just like with "non smoking sections" back in the day: It still reeks to non-smokers. People vastly underestimate just how much even being a "casual smoker" does to your sense of smell and tolerance for tobacco stank and so forth. And the people who actually are going to cigar lounges, regardless of what they tell themselves, are a few notches past "casual" and so forth.
Which gets back to the issue and why most bar owners aren't actually fighting for indoor smoking to come back. Running the gauntlet of chimneys outside the door? it sucks, but people will do it to hang out with their friends or go out with the really cute Romanian girl. Sitting in even a light haze of smoke for a few hours? Fuck that noise, let's go to the bar across the street.
Which gets back to the cannabis bar problem. You are basically only catering to people who smoke at that point, and that is a much smaller population. And that also ignores the issue with contact highs and even delayed reactions triggering a shitshow of DUIs.