And following that assumption, the most recent version of the national electric code in the US calls for there to be a drop for a EVSE at every N parking spots

And following that assumption, the most recent version of the national electric code in the US calls for there to be a drop for a EVSE at every N parking spots in new apartment buildings (there's a formula based on how many spots). It doesn't require for an EVSE to actually be installed, but the building has to have the capacity for it. That's important because adding say 20 30 amp EVSEs is a non-trivial increase in the total capacity a building needs. BTW, even a 30 amp EVSE isn't great in an apartment. Because commercial service is almost always 3 phase, you'll only get 208v. That's 6.2 kW. In my townhouse, I have a 40A 240V circuit (50A at the breaker, but the 80% rule means the EVSE only puts out 40A). That's 10 kW. A 61% increase.