They might actually be going all-in on a robotaxi future, i.e. betting on a future where car-ownership is not the default.
They want the convenience and freedom a car provides. Right now in many places the best way to get that is ownership, so we suck it up and buy a horribly depreciating asset that causes headaches.
That could quickly change if someone can figure out how to make using a car just as convenient while also cheaper.
^ of course there are car enthusiasts who will always want to own, but that’s a tiny fraction of car owners.