Mace, I tried to donate my old 75g to a private preschool. I offered many easy to keep, low light frags, LR, and even to set it up. Then they asked about maintenance and the saltwater aspect of it was just too much for them. Ontop of that the cost of electricity, top off water, etc turned them off. So I thought about throwing in a year of free service and called around but I was looking at $1500 in addition to my time, equip and livestock. Long story short, the school kindly declined.
Maybe a high school science class can start a fowlr every year and break it down before the summer. That would me neat. In high school we were doing simple genetic engineering on bacteria, which we had to fundraise $250 each, but it was a project with an endpoint. Reefing is 24/7, 365days per year. Still, its a nice daydream to think you can spark that type of interest in a child.