My understanding is that most of the school troops are low-income minorities.
My troop was sponsored by an elementary school PTA. We raised funds by collecting newspapers and showing movies in the cafeteria on weekends. I assure you that we had nothing like the extravagant equipment I observed at the troop my son attended at a Catholic church. The big difference was that the parents were involved to excess at the Catholic church sponsored troop. Extravagant outings with fancy gear. My own troop required the boys to do the work to finance their own outings. They were far more modest, but we never felt "entitled". We did no more than we could afford. I made Eagle in that troop as did quite a few of my peers.