Intelligent charging of EVs could make your grid more resilient rather than less. Especially if it is coupled with local solar. A friend of mine in central France has solar panels that he says provide almost enough for his EV on average. In the winter he has to take a little from the grid as well.
Norway has not switched to 100% EV. EVs are currently one third of the total private cars in Norway [1].
We are just close to all new private car sales being 100% EV.
The problems that most countries have with EV adoption are as much social and political as they are technical.
"Intelligent charging of EVs could make your grid more resilient rather than less"
Could being the important word here. With advanced load shifting and V2H all sorts of cool things could happen in the future. My point is simply that switching to EVs at the Norway's pace is a lot easier in a country with an abundant predictable renewable resources, which already uses 3x more electricity per person than any other European country.