You can't fill up your gas tank at home or at work, which is presumably where a significant portion of EV drivers charge their cars.
The same applies to workplaces, especially if solar causes electricity to cost less during daylight hours, and then it becomes convenient to get an EV if there is a charger where you park at night or where you park during the day.
The UK runs on 240V. A regular outlet would probably be fine.
There's usually very little of the garage space available.
And this is how the typical street looks like: no way to charge at home: https://c8.alamy.com/comp/2X6K1R4/typical-english-terraced-h...