Well, having an all electric house, and a very different water/pluming system, (it is "push button" 12 volt electric powdered-one pipe system for hot, cold, warm water to each sink)

.....that means I have not working water when the power goes out....how would our cars get power when the electicity goes out?

Today several places around here were without power due to high winds which knocked down power lines.

So I do not know how - with our current electic situation in this country we could do that. Way more needs to be improved or built and known before all electic cars are a thing.