I agree that tips as a substitute for wages should end, and that expectations of non-zero baseline tips should end.
However, I feel that tips as incentives for good service should absolutely continue. (Either that, or real-time rating systems visible to the employer, but I'm not sure that outcome would be preferable.)
Lots of other industries need face-to-face contact. It would not be a better world if we had to tip the dentist's receptionist, the office building's security guy, the plumber's apprentice who does comes back to finish the job... although it's still important that all of these behave well.
That said, I've heard good things about Japan's food service, and they don't require tipping.
EDIT spelling
Jk... somewhat. Robot served food is actually becoming a thing.
In Europe, you get seen when it's your turn and the staff work at a reasonable pace without killing themselves because they have a decent base pay. They don't degrade themselves for tips (I've seen this a lot with waitresses in the US flirting horribly with customers).
There are also significant regional variations in how people interact. And it is more common to stand up & pay on the way out, which solves the frequent American complaint of having to wait forever for the check.
Japanese services (in Japan) in general are truly something to behold.
Even as foreigners we've had entire crews of airline and hotel staff getting involved in resolving minor issues, taxi drivers guiding us to destinations on foot, search parties scrambled to find lost items, and government bureaucrats doing things for us way beyond their job descriptions. It's insane.
The food service is similarly attentive.
And no, I'm not a diplomat, celebrity or anybody special.
We tipped none of them but they all deserved it.