I think a lot of the comments here are unnecessarily snarky to the point of being unhelpful. If I’m the operator of some public place - let’s say an arcade or a store - every square inch of my store that isn’t being monetized is inefficient, and for as much as I might like to put a water fountain in as a courtesy, why wouldn’t I do the same thing and get revenue for it at the same time?
No one argues that water in the best case should be free and that it’s in the public interest to provide it, but that’s just not realistic in a lot of cases. And in this specific case, the net good provided supersedes whatever argument people have against the commercial aspects, IMO. If it’s this or a vending machine or another rack of clothes, isn’t this better?