As always were drifting off the original topic and question. But I'll play along.BUT if everyone has an EV just imagine the fights to actually find a charging point. Let alone enough power to service them all.
Granted it'll take a while for infrastructure to catch up. but we don't all try to fill up our cars with petrol at the same time do we?
When you stop at the motorway services, go to tesco, or the doctors we don't always fill our car up with petrol, Id guess that less than 10% of people that stop at the services also buy fuel, and from what I see at least half the people that stop at petrol stations are buying coffees or shopping and not getting fuel.
likewise not everyone will be trying to charge their car at the same time.
As with your point about multi car families. This thread has shown that the majority of us do few miles, so even I'd you have multiple cars, your not likely to all need to charge them every night at the same time.
If you do 20 Miles a day, and your cars got a 200 mile range, you'll be charging it once a week?
There's always exceptions and high users, and as I've already said, infrastructure has to catch up (when cars first came on the scene you could only buy petrol from the chemist, but we didn't say "this is a shoot idea that will never catch on").
For the majority of low mileage "normal" users, I think your onto a flawed argument.