Re: Trickle-down effect?
Although that seems like a good idea and it would reduce the scourge of on-street car storage, er, parking, it would dramatically increase the miles driven.
Instead of driving your own car A --> B then B--> A, it will be
or even D--A--B--D--B--A--D.
Granted sometimes it might go D--A--B--E--F--E--G--H--D, but not every time and hardly ever in rural areas.