Except in March the administration passed rule, which is basically a de facto mandate, that 2-thirds of new vehicles sold by 2032 be electric, but lets keep pretending that the government has no part in this, and its all consumer driven. And yea, lets see how much money Elon gives back, since he's in the business of giving money away.
I'm still wondering how road tax is going to work for electrics????
Since they are all s/w, they could pay each state. they know what road they are on most of the time, so no toll booths.
ride share - the car could know multiple people are in the car, and split the costs.
don't worry about the grid - that is a queuing problem mostly at night.
don't worry about the pollution at the generating stations - i'm sure 1 point source of pollution is easier to deal with than 1,000,000. assuming they generate pollution at all.
(ok, the cost to build it, but once we have electric vehicles building generating plants that were sourced by clean energy.........)
that leaves us with the battery problem - that will get solved. As will the fast charging.
we may hit the singularity before then, so it doesn't really matter?