As a long distance backpacker I'd love to be able to get a ride to and from the trail at a reasonable price.
Of course, we'd also need better cell coverage.
US West is more like Siberia, or Canada 100 miles north from the border. There are not enough subscribers to economically cover with GSM / LTE, except in cities and along major roads.
[1]: https://en.wikipedia.org/wiki/SpaceX_satellite_constellation
I've been deterred from hiking the Grand Canyon rim to rim by needing to either hike all the way back, or have two cars and add a 5-hour drive. Salt Creek in Canyonlands is another where a shuttle is a help, or crossing from The Maze over the river to The Needles (avoiding many hours of driving back).
Being able to call a self-driving car to affordably make these trips would be great.
If anything, rural and exurban folks will have the most to benefit from electric vehicles and PHEVs (even without any charging infrastructure), since they end up driving more miles on average than city residents.
Self-driving cars can co-exist with short-term rentals. I live in Seattle and recently sold my car because ReachNow is good enough: it does short-term rentals by the mile, but when I go hiking I can do half/full-day rentals, and it still ends up being a lot cheaper than owning a car. And this is before self-driving and the cost savings of EV enter the equation.
I disagree with this. Why not? Hell, reserve the car for two weeks and have it sit there at the trail parking lot, if you want the old school experience. Still cheaper (for you, for the environment) than full time owning a car which is unused 90% of the time.
For some this will mean their optimum is less car ownership, and for others no car ownership.
The trend will be amplified in areas with limited parking and high costs of living.
Also, you can always rent a car to go to the trailhead, just like you do on vacation.
None of this is dependent on electric or even self driving cars, as it is all already happening today with ride services and ICE cars, but self driving cars shift the economics considerably away from private car ownership.