Lots of essential infrastructure is cheap because of competition, like for example electricity generation. There is no reason to believe EV charging will be different.
Of course, it might also turn out that while electricity costs are low, other costs of running charging business are high. If that’s the case, that doesn’t bode well for EV adoption in among people who don’t live in houses.
I've been reading HN for years and people from the USA keep writing that this didn't happen there for fiber and other telecommunication service. Is it going to happen for EV chargers?
This is exactly what I'm saying though - motorway petrol stations are insanely expensive, because they have no competition - a company wins a contract to run the only petrol station on a given stretch of the A1, so they can charge obscene prices for petrol. Same is already happening with electricity - some providers along motorways charge an insane £0.69 per kWh, it would be cheaper to fill up another car with premium unleaded and use it to charge the electric car at that point.