I would guess if there is a sufficient customers base, that the profit motive would get someone to back charging stations in rural areas. Why not the electric utility?
And considering that rural people could charge at home and be 40 miles to the nearest gas station, perhaps those rural folks might even want an EV?
So far as subsidies, there's $7b in the infrastructure budget for the next three years for charging stations- provided the new admin doesn't sequester it.
So far as charging stations. Tesla has started them and promised to open them up with adapters for other cars, then promptly fired the entire charging team. Perhaps trying to ration what was originally going full on? Perhaps Tesla Charging Systems should be spun off from Tesla Car Maker? Elon can own one or the other.