These businesses always start with someone noticing that the average person wants to do something that an expert can do something very easily. For example, flipping a burger and handing it to you. Anyone can make a burger, but an expert can spend a few days and a few hundred bucks figuring out how to finish a hundred an hour including prep and cleanup for $x.xx per unit.

Next, they rent a space and train cheap labor to do whatever it is they want, and start advertising. Maybe it doesn't catch on, maybe people would have said, "A goofy looking building where teenagers just make burgers all day? I'm not going to that, I feel stupid, and I won't tell my friends to meet me there. Undignified", but actually in this timeline it caught on. No problem.

Since it worked in one place, it worked everywhere, so now there are hundreds of thousands of burger joints, and what makes the successful ones successful are marketing and logistics. There's a building somewhere where Wendy's executives get together and figure out how to secure access to cheap beef and potatoes and how much to bid for some children's entertainer to lend buzz to the products.

But what eventually happens, is that the original conditions that made the idea possible no longer exist. In the case of burgers, it is a lack of cheap beef and cheap labor that no longer exists. So Wendys has to struggle, and be seen struggling. They come up with ideas like "surge pricing" for burgers and get roasted in the press for being out of touch. The ideas seem sensible from their offices because they don't want to give up their executive salaries and go flip burgers for a living.

So investors are always looking for the next turn-key get-rich-quick scheme. Here, it's "charge your car for $15". Simple to say, simple to implement, and sounds like you might be able to sit in a big office building pretending to work: why, we could charge a little less or a little more! We're experts!

The problem that you've pointed out is: it's an illusion. They're not selling expertise. They're mentally skipping ahead to the part just before they start realizing that. Since you're not invested in the idea that only an expert can provide people with the electricity they need to get around, it seems dumb to you.