Agreed. But this is an easy fix. Except it isn't because it's a matter of character and manpower and only then is it about money. Cities would gladly implement ideas, just create websites with & for proposals, let the neighborhoods know, get volunteers, demand social and corporate social responsibility, plan and organize potential development projects, in some cases we'd have to wait a year or or two or three for some official approval and a construction company to find a free spot but this really isn't a problem to which the solution requires more than a naive beginners mind set and consistency.