A fast charge over lunch would be acceptable. However there are not near enough fast chargers. Every fast food place needs to have 1/2 of their parking spots equipped with a faster charger (1/4 if there is a way to limit them to people charging)

Yeah this is another concern I have. When I have time to fast-charge, it's likely the same time that a lot of other people want to fast-charge, such as during lunch. So you'd have to overbuild fast-chargers to meet peak demand.

Gas stations have this problem too but it's not as bad, because filling up a fuel tank takes maybe 5 minutes not 20-30.