Most? In what country?
There's been arguments about putting them on lamp posts - ok, but again, cables. 1 lamp post for ~10 cars doesnt really work.
Plucking a random average UK street off of Google maps - figure out how you charge cars at 6pm when everyones home from work and this road is full of cars on both sides of the street: https://www.google.com/maps/@53.4257624,-2.9412328,3a,60y,22...
Not seeing anyone coming up with a way to solve that pretty important issue.
That must vary between countries, because I've seen tons of outlets on the outside walls of homes in Finland. They need a weatherproof extension cord, but it comes in handy for a lot of tools. Though most homes have at least a driveway, cars are generally shorter than homes, so they fit close by.
The cost of free parking and where to park should really be reconsidered in cities though, as with your image, those exist here as well and are really bad places to drive in. IIRC in Japan they require people to prove a car has it's own dedicated parking space before they're allowed to get a car
The issue as shown in the streetview image is that those are public footpaths next to the houses. If you tried dangling a cable from your home to your car (if you were lucky enough to get a spot outside your house) you'd very quickly be in a lot of trouble when someone trips over it.
This is where the incentive program breaks down and the 4- or 5-figure electrician quotes start for a lot of houses that were built in a time and place where natural gas powered all of the heavy appliances and panels were sized for 60- or 100-amp service.