If we put little produce stands no farther than a half mile apart from each other in residential areas, charged people 50 cents (cash or food stamps) a serving or free for kids on the free/reduced lunch program I think we would at least break even in terms long-term costs. We could also provide every public school kid with a bike (wouldn't have to be new, but we would have to provide repair services) and/or a bus pass. More neighborhood pools with free passes for kids on free/reduced lunch and skate parks would give more people access. I think this stuff would work in my area to reduce childhood obesity, although it gets pretty cold in the winter and that keeps a lot people indoors and I'm not sure what to do about those months. Maybe neighborhood community centers with gyms and produce stands operated on an ice cream truck model.