Currently their ICE cars are an inconvenience as they have to drive somewhere to fill them up, and they can't ever power the house from them. Again Hybrid is the worst of both worlds. A car acting a a giant house battery, and being a mode of transport is a great solution, and lots of them have solar so can just keep pushing electrons in the the battery, an if it gets to low drive to their local supermarket, pub, community hall, etc.
It seems that you think that people who already live in a stupidly inconvenient manner are going to care about making their lives much better, by perhaps having to charge for 30mins/1 hour a week to some where that isn't outside their door. They aren't hermits either, they do leave the house.