It's a capital expense to make the upgrade, and a political question of what should be done to require/encourage it.

All you really need is a standard 120V outdoor outlet at each spot. Consider that for every one or two cars that need a single outlet (even if you put it on a dedicated circut), there is an entire apartment with about a dozen circuts, multiple outlets per circut, likely a mixture of 120 and 240 outlets, and several appliances that switch between 0 and 100% load unpredictably.

If we can figure out the electrical engineering to make that work, I don't see the problem with wiring a garage for charging.