You don’t necessarily need “most people” to have a big and growing business, though. Getting electric cars into the garages of people in suburban and rural areas is still a pretty big market, and in these places there is often room to install solar panels. That will reduce load on the grid, which can be used for other purposes, including electric car charging in cities.

Also, maybe we shouldn’t expect one kind of transportation to dominate like happened for cars? There can be different solutions for different use cases. Driverless taxis, electric bikes, and public transportation all work sometimes, and they can be usefully combined.