Quick charging is a just in case solution and probably shouldn’t be relied on. It’s more efficient and likely much easier on the battery to slow charge it overnight.
The task is possible, but gargantuan.
They can limit access to those chargers to the people living in the building or allow anyone to use them and make some money by selling the electricity. You can even have access control depending on the time of day.
Another benefit is that you get load balancing when many people are charging at the same time.
Private chargers are only a good idea if you there's only a few living spaces.
How is that making it worse?