Mid to long term ownership plan.

As you may have hread earlier EV's are almost the only cars sold new here in Norway.
In the cities where you cant get a private charger there is stations just like petrol stations. when crossing longer stretches of rural areas there is charging stations. one should think there would be empty EV's scattered along the countryside but never seen one run out of juice.
Most of my friends now have EV's. Some keep a petrol car for either hobby or as a spare.
My friend that drives 60-70km to work every day says the petrol savings pay for the new VW ID4 GTX.
In our part of the country we are not hooked up to the powerlines that connect europe and UK to our power grid so we do not import your electricity prices just yet. I think the average price now is about 0.05 to 0.1€ pr kW but periods the price have been up to 0.2 to 0.3 but last summer it was for free during the nights and in some short periods we actually got paid to use electricity how stupid it may sound like.
The power meters are all digital now measuring consumption by the hour. So the price vary by the hour as well. By programming the charger to charge the EV at low cost hours the savings can be huge.
But the south part of Norway is connected to the euro and UK grid so prices there are higher but still EV 's are much cheaper to run. Charging at night the price of electricity is way cheaper and some cars come with a plan payment for the power or even free charging.

Keeping a car for the long run rust treatment is the key. and cleaning and retreating if needed. everythjing else can be easily fixed.

I too think petrol will be available for a long time. But it will get costly as lesser and lesser cars will use it.
Here it will probably not ever be allowed to convert petrol cars sadly.
I am doing a full restore of a 1987 SJ. Thinking it might get a m16 engine and the jimny electrics and everything including a cat. I am hoping that a more modern engine will make it more likely that i will be allowed to use it 10-20 years from now.

Very interesting.

I think that population (and population density) may play a part here. A quick Google suggests the entire population of Norway is only 5.4 million people. To put it in perspective London alone has a population of about 9 million people.

I live in Poland rather than the UK (although I'm English by birth) and personally, as well as the future restrictions due to sales of ICE stopping, what may also be more restrictive is the U/LEZ becoming both more widespread and more strict. I don't know what Euro category the M13A engine is rated at, but it can't be more than Euro 5? If we see more ULEZ as well as those ULEZ restricting entrance to Euro 6/7 then that becomes problematic for many owners. It may be that even if you can afford the fuel in the future, you won't be able to afford the "charges" that will come with driving it anywhere.