(Of course outside london driving and parking on the pavement is the norm so it’s a moot point)
It is, in some streets where I live. I've complained about it - it's against the law. Well, it's a law that apparently can be circumvented by local byelaws, and the Council's claim is that the residents have nowhere else to park.
Well, that's true; they don't. But then they shouldn't be buying/renting a home with no parking! The Council is an idiot; the left hand says there's too much traffic in this town, the right hand says that residents with no parking should be allowed to park on the footway. This Council is run by an executive committee, the only (purported) benefit of which is joined-up decision-making.
Work has already started on the tech to allow this. They plan on using wireless charging. Mostly it's planned for supermarkets and what not just now, but I suspect it'll get added to standard roads over time. The main issue is getting car manufacturers to support it but they seem to be looking to add it over the next few years.
Cars also spend most of their time parked, and this isn't expected to change either. So ordinary 7kW AC chargers are adequate, and expected to remain adequate, at places where cars spend most of their time parked such as at homes and car parks.
Therefore, there's basically no reason to expect a regular 7kW AC Type 2 electric charger to be obsoleted in the future. Just as a typical home in the UK hasn't needed its 100A incoming supply upgraded in a long time either.
Rapid charging demand is very different. This is relevant for places like motorway service stations, and where electric car owners don't have a charger at home and have to charge en-route. But if anything the demand for rapid charging will go down in urban areas as "slower" chargers increase in density in places where cars are typically parked. That leaves places like service stations. These will probably need to be upgraded regularly as you suggest, but that's a very different proposition to having to repeatedly upgrade every lamp post.
Charging stations vary in sizes. I've seen some really small ones. But I've also seen really large units.
But the issue so much the size of the units, it's that the streets of the UK aren't exactly well designed in the first place. And now they're adding extra things which were never met to be there in the first place. It's not the units that need work, it's the british cities that are footpaths or varying sizes next ot each other, not enough room to drive and park. Many streets it's basically one way traffic because there is only enough room for one car at a time.
My street is like this. The problem is there are already too many cars. We have a constant flow of traffic 12 hours of the day and most of this is people using our street as a rat run or as a free alternative to parking all day in the town centre which is less than a mile a way. A couple of times I've seen people park outside our house using two spaces (intentionally so no one can park in front or behind) and then pulling out a bike.
We have a driveway but it's not uncommon for somone to park in front of it and block you in so not entirely reliable.
The chances of any suitable charging points for actual residents being developed in such situations are near to none.
Perhaps a first step could be self driving to and from a car park near your house. You ‘hail’ your car via an app / button in your house.
We could then get rid of parking on residential streets and reclaim parked-over pavements for pedestrians.
Pop-up chargers are at least hidden when not in use: https://www.youtube.com/watch?v=Frkw6aurVUY
Utility pole chargers do a good job of staying out of the way: https://www.youtube.com/watch?v=UjiR-Wz_Z8s
Others are thinking about high tech solution to this, but as a start whenever there is on street parking just reserve 10cm between some of them and put all the utilities there.
We could also do with much less signage, outside of the ones for the speed limits (we would need a lot less of them with a 30km/h speed limit in cities… but I digress), road type (one way) and hazards I struggle to think of any others that is useful.
I moved out. I now let that home, and my tenant doesn't drive; so he doesn't drive an EV. If he did, I'd have my sparks install a charger at no cost to my tenant.
I also would object to obelisks blocking the footway. There's already too much crap blocking the footway (recycling bins; electric scooters). The crap makes people angry - especially blind people. Doesn't surprise me at all.
Except the footpath (this is london) with this obelisk monstrosity was less than 2ft wide. I couldn't push a wheelchair past it.
The solutions I've seen are part of a never decreasing blight on the urban landscape. It should be within our grasp to design these more sympathetically.
The resident has now sold his house and moved.