In some roadside shops there are norms that “WC is for customers only” which leads to behaviour like buying a candy bar you don’t really want, to use the facilities.
I would imagine a restaurant would choose to not serve a recurring “water only” customer and even at first time visit I would imagine aggressively pushing the menu until telling to leave. And on the other hand some restaurant strategies might want to instill to people the habit of hanging out there, so in those times that they do get hungry they get to be the servers.
In some roadside shops there are norms that “WC is for customers only” which leads to behaviour like buying a candy bar you don’t really want, to use the facilities.
I would imagine a restaurant would choose to not serve a recurring “water only” customer and even at first time visit I would imagine aggressively pushing the menu until telling to leave. And on the other hand some restaurant strategies might want to instill to people the habit of hanging out there, so in those times that they do get hungry they get to be the servers.