The issue is a little more nuanced than that. Most buildings can only install a few EV chargers before they need to upgrade the mains, and if that needs to be done, the transformers likely aren’t adequate, and the local grid may not be able to withstand it as well.
The owners costs ends at the transformers, taxpayers and the energy corp are in for the rest, and until the energy corp upgrades the grid and transformers, building owners can only do so much.