Imagine you turn up to a charging station behind 4 other cars, and there's 2 charging points. Your 20 minute wait is now an hour. If each car took 10 minutes then you'd only be waiting 20 minutes.
Increasing the average waiting time in a queue has a terrible impact on throughput.
- everyone who can charge at home (i.e. anyone with a garage or their own driveway),
- those who change in public places like shopping malls or at work, and
- any other infrastructure (like the "charging port in street light" thing)
so the new "gas station" is likely to get less busy - depending on home ownership in the area and how many shopping malls get charging ports, most cars might only ever visit "gas station" on a road trip.
I also think there will be a lot more roadside individual charging stations rather than specialised large locations that are convenient because of the centralised storage of a physical liquid.
Sure, but that's limited by land in cities and electrical infrastructure in more rural areas. Whether there'll ever be enough charging points to make charging your car not be a hassle is something only time will tell.