Let me get this straight: Kids are jumping across an eighty foot deep gap between parking garages and the parents of those so injured are saying it is the city that needs to do something about this? Michelle at A Small Victory lays into the parents for not looking out for their kids, as in knowing that they are out jumping from one multi-story building to another. I'm with her, the propensity to keep tabs on the safety of one's children is a survival trait for the species. The following generations would be better off without the negligence of the elders and the lack of sense of the younger.
One more thing: I notice that the title of the feature was called "Problem Solvers". Obviously the easiest way to solve this problem is nothing and allow gravity to run its course.