I’ve lived without electricity actually quite a lot; and not with a gigantic array of solar panels, but more simply. BUT - the rest of the world still had electricity. I could go to town and buy propane, food at the store and so on.
IMHO people need to prepare for a very different life and be ready to live very simply and without any fancy stuff that most people cannot imagine living without. Even though I have electricity now, I still live very simply - for one thing, I have very little money. And two, I’m used to it, and have few needs. But so many people will be mentally and emotionally shocked if (when...?) things they take for granted are history.
Things like shopping for whatever they want, all the time - shampoo, hair conditioner, instant and pre-prepared food, eating out, watching all the new movies, new clothes all the time, never having to mend or fix anything, watching TV, having their hair and nails done; that kind of thing. And throwing clothes in the washer and dryer...
The technology for off grid electrical is so advanced now that you can put together an affordable combo to power up a retreat and be fairly comfortable.
After researching for over 2 years we have arrived at a plan for a combo of wood, propane and a small solar system that would basically give us the same lifestyle we live now except for A/C. Will have to ditch the clothes dryer and go back to the clothesline but no big deal. When I was a kid nobody had AC and everyone used a clothesline. Life was good. A little hot in July and Aug but you just lived through it.