Playgrounds and sidewalks also add little economic value to society.
Hot air balloons or even small personal aircraft are a niche that serve a mostly wealthy subset of the population. Drone delivery and transportation will likely grow to serve all of us and kick off a multitude of further technological and business innovations. Because of this, drones should get regulatory approval and preference due to the huge potential benefits for society.
Not sure I met many “wealthy” balloon pilots, but glad you make “the trillion dollar industry of drones” a “fight for the common man”