Fast charging is really only relevant in two scenarios:
1) You want to travel further in one go than the cars range
2) You do not have access to at home charging
For those who can charge at home, fast charging is really only needed for longer road trips. Current new cars like the Kia EV6 can fast charge at around 200 kW reliably, that means 20%-80% in around 15 minutes. For the vast majority of people this will be fast enough to be comfortable.
This generation of EVs are already very mature technology. Couple one with a 22kW home charger and you'll have very comfortable and stress free traveling.
1) You want to travel further in one go than the cars range
2) You do not have access to at home charging
For those who can charge at home, fast charging is really only needed for longer road trips. Current new cars like the Kia EV6 can fast charge at around 200 kW reliably, that means 20%-80% in around 15 minutes. For the vast majority of people this will be fast enough to be comfortable.
This generation of EVs are already very mature technology. Couple one with a 22kW home charger and you'll have very comfortable and stress free traveling.