Need? None, really. It’s like when you get to the North Pole, the entire concept of “north” breaks down. It would be the same with post-scarcity. Or should be, except…
Have? Completely up to the whims of whoever controls the technology. Which… takes a look at the planet will be whoever is left standing once the nut jobs wipe out everyone that they hate. “Computer, ICBM, nuclear.”
This just happened to me on Saturday.