If your Mom & Pop coffee shop/restaurant adds a few 22kW AC chargers on their parking lot, those will show up in the "find me a charger" navigators in thousands and thousands of EVs. This _will_ drive new business.
If I have the choice of stopping at Generic Station Chain Alpha to charge vs. a smaller shop on a road trip or vacation, I'll always pick the latter one.
Some cars only use one phase (1x32A = about 7kW) Others use all three phases in different formations, usual charging speed is 7-11kW. I think only a few specific Tesla S models and the Renault Zoe can utilise the full 3x32A.
But yea, its mostly a cost-cutting maneuver on the car manufacturer's side to limit the onboard AC charger.
We can have 240V 3 phase, but that's not common in homes, and the standard J1772 plug doesn't support more than a single phase.
I mean, yeah, cost cutting manuever, but it's a sensible one. The rectifier for high power is expensive and hot. Better to move it to somewhere fixed that is potentially higher use, and easier to cool. I wouldn't be terribly surprised to find 80A EVSEs becoming more common for home use, but those will likely be either weird dual cord things, or large vehicles, or have something else special going on (like the F-150 Lightning's V2H charger), or more than one of the above. But I suspect there's a reason why Tesla stopped selling the 80A wallboxes.
The Tesla "charging station" I've personally been to was a few chargers on the edge of a supermarket parking lot (I live in rural-ish Michigan).
I doubt we will have dedicated "gas" stations for electricity in the future. Most car parking spaces will come equipped instead.
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