Haven’t read trough this whole thread so I do t know if some mentioned this already but the Germans don’t do it at all. They think it’s non-sense and they have some of the strictest automotive safety inspection laws.
Having said that, I think it does have its benefits. . .
Technically not true. In Germany you are required by law to install snow tires on your car during the winter months. Whether the tires get rotated or not is probably an individual issue. I know my father in law keeps track and rotates.
Have you never seen a poorly maintained vehicle with tons of gray brake dust imbedded in the front wheels? I can virtually guarantee you will find front tires ground down to the nubbin' on such a car/ truck. That is someone who never rotates their tires, and I doubt they can claim great distances from a set of tires.