Re: 50 miles???
'So, with car of 200 miles+ quite common now, you just need a charger away from home. This will only affect, on average, 2~3 journeys per year.'
Clearly you don't spend summer weekends at the cottage and winter weekends skiing.
Enough people do to create several hours of traffic congestion on outbound routes on Friday, and inbound routes on Saturday, but after the first 200 km geographic dispersion starts to thin it out.