The problem is somewhat exaggerated though.

The technology already exists to share charge across multiple cars, and since most cars don’t need that much charging, that’s not really a huge problem.

It wouldn’t be as fast as a dedicated charging spot, but for at home charging that’s fine for most.

No worries it’s a concern for even single family homes as well, a transformer can normally supply 4-6 houses, but put an EV in every house and they can only do 2.

Most people in non-modern homes will likely need a new panel and mains, same issue applies to the transformers and beyond there as well. Homeowner is responsible to the transformer.