Most people off grid need to be keeping a constant eye on their battery levels of charge, and do things like only using the washing machine on sunny days.
Certain appliances like tumble driers, electric showers, and fan heaters, you pretty much can't have.
These habits seem difficult to inject into popular thinking until there is economic pressure. Human populations have consumed entire forests to burn wood just to cook and to stay warm. Electricity is a superior solution, but the same primitive, wasteful habits remain.
In other words, for all the people "on the grid", the challenge is to unlearn wasteful consumer habits and conditioning. Their homes are full of devices and AC adaptors that draw power when idle. The combustion engine itself is very poor in efficiency, but the high energy density of petrol masks the cost.
People prefer not having to think about the energy cost and environmental cost. A challenge in the area of EV adoption, for example, is that people expect not to need to concern themselves with expenditure. Those who drive an EV need to be aware of the energy cost of driving (e.g. heating, cooling, tire inflation, load) and of the advantage of combining trips.
Is it all "too hard"? Well, the period of "energy luxury" has brought us to an ecological crisis.
I would consider anything short of new tech that allows us to continue increasing our quality of life while simultaneously improving ecological conditions a failure.
So a crisis forcing reduced usage is after he have examined/tried killing the other humans using the resource.
Not a pleasant thought, but reality.
Imagine if: - You can put your clothes into a combined washer/dryer and it starts washing and drying when your PV panels generates a lot of power - Your fridge thermostat adjust to lower temperature when there is power from the panels, and temporarily pause the compressor when a high load appliance is being used, such as microwave
Unfortunately in real life, smart appliance only have gimmicks and are very insecure