The id.Polo is apparently starting at 22k GBP in the UK; the VW Polo's always been a pretty popular car (and also starts at about 22k). I'd expect those to sell very well.
And if they rent or otherwise don't own a home with a driveway? In the UK with its strict electrical codes, your charger must be installed by a loiscensed electrician. So add £1k right there.
Your money saving effort suddenly becomes a major inconvenience to fuel your car.