One type of place I prefer the status quo, and would hate to see it change, is restaurants we frequent often, at which we are likely to get the same waitperson again and again. I feel that tipping generously on one visit will pay dividends in the form of attentive service from that service person on subsequent visits.
I feel the same when staying in a hotel for several days, when I am likely to encounter the same room service waiter, or have the same housekeeper, on a repeated basis. Or when ordering delivery at home, for the same reason.
I practically always tip generously, whether I expect to see that person again or not. But the expectation that I will see a service person again provides IMO a very rational reason to do it.
Pithy quote here.