> Land for solar installs isn't close to free. Land for vertical solar is free. Think of all the walls and fences to start with.
> Older buildings not designed for a solar roof aren't too easy to retrofit. If there is a building code that requires it, every building will be built with that standard. Think of all the buildings with bathrooms. Bathrooms and indoor plumbing didn't exist 100 years back, no building is now built without bathrooms.
Also, most of the world has concrete construction. Ridiculously easy to add panels.
> parked at work work is also a building. You can charge at office. You have to demand these changes. If your employer makes you drive hours in traffic, the least they can do is provide free charging.
The world is not fixed and frozen. You can participate and make the changes needed.