Compared to every person owning their own car, but now it has a bunch of extra sensors and a cloud subscription? And the city still needs to build and maintain

Compared to every person owning their own car, but now it has a bunch of extra sensors and a cloud subscription? And the city still needs to build and maintain the roads. Or a bunch of robotaxis, which reduce the up-front cost and amount of parking needed, but the operational and infrastructure costs remain.