“This do-whatever-you-want attitude can spoil a park, [says Adrian Benepe, a former head of the New York City parks department who now runs the Trust for Public Land’s national urban park program] for the same public it’s supposed to serve. Parks are a scarce and fragile resource. And so cities began to do what most do today: They have rules for when you can be there, and what you can do, and how you should play nice with others. They set up the kind of permit systems San Francisco has to manage competing claims to scarce space. They have to balance the demands of people who want an off-leash dog park with the demands of people who don’t want off-leash dogs running through their picnics.” Read More.