"Necessity is the mother of invention!"  Just a reminder that there was a time that two high schools (that I know of) in Maui County offered fully operational farms, one also had milking cows and a working dairy, as part of their FFA program.  Unfortunately, produce grown by these school farms could not be used in the school cafeteria.  BUT, the dairy at that one high school provided all the milk needed by the students.  And during school breaks when student farmers were out, the individual cow owners from the farm community assisted with operations.   Prison farms provided their population fresh foods grown by the prisoners.  I think we are coming full circle in our understanding of agriculture production and education, equals sustainability of a community.