They still won't care to change. They will complain, yes, but change? No.

That seems fairly reasonable to me? Most people are just trying to get by. They have bigger problems on their plate like getting paid so they can pay their bills on time, and keep a roof over their head. Adding additional stuff on top of that is a cognitive load that most people would rightfully push back against, because they don't have the spare capacity.

I think this is a big part of why, to-date, the environmental movement is comprised of the relatively wealthy, and what I would characterize as "true believers" who don't have much, but are okay with that, and okay with living their lives in a way that minimizes their impact. The first group have the spare capacity to do something about their impact, and the second group take it on as a mandate that often (but not always) affects their ability to function in broader society (or: how do you hold down a decent job if you ride a pushbike everywhere?).

My personal belief is that any successful environmental movement needs to go hand-in-hand with a more equitable distribution of wealth in society, and focus on quality-of-life, so that the people in the middle have the spare capacity to give a shit. Otherwise, you're going to bump into the ugly reality of people's day-to-day, and your movement will be perceived as rich people -- who make up the bulk of consumption to begin with -- telling everybody else how to live their lives. Which is exactly what's happened. I don't think it's an accident that the countries farthest along the path to decarbonization also have some of the best income equality, and quality-of-life on the planet.

People already charge at night because that is currently when power is cheaper. They'd switch if they can and it becomes cheaper.

We already see this to some extent, as people with free workplace charging often choose that over home charging when possible.