Why not have the common space on the bottom floor and make it an actual coffee shop? Then you're no longer working against developer incentives. I guess it would need to be mixed-use zoning.
Living in Japan where mixed-use zoning is the norm, there is often a small local bar within walking distance from where you live that can fulfill this role. This has been one of the best parts of living here for me, I can’t imagine going back to the western world where zoning and local government often makes local meeting places effectively illegal.
Something makes me wonder if this is part of the reason Japan is so safe, as well. If you’re first choice for drinking is a place where everyone knows you and lives nearby, you’ve got a much greater incentive to behave than if you need to drive to the other side of the city. Not to mention that it reduces drink driving, and combined with public transport, makes it possible to have a zero tolerance on drink driving policy.
