Houses there can cost half a million pounds and more. They are not cheap by any means. Yet the only parking is on the street - and sometimes you park in front of your door, sometimes down the street, you can't possibly run a cable down from your door. So what do you do? Does the city council install 50x chargers along the curb for everyone? Why would the residents agree for a bump in their council tax to do that? They are already driving cars, there's nothing wrong with them, why pay for this?
I'm not saying I'm against the idea of electric cars. I love them. But it's going to be super hard to do properly, because most people don't live in places with their own driveways and can't run cables from their homes.
Those parking spots already cost a lot of money. Setting up chargers is not unreasonable.
Heck, bundle it into the price of the car for home use. A thousand dollar bump, paid over time, not a big deal.