I LOVE the idea of repurposing open land in the city to grow livestock [[as well as crops and gardens). People could again feel a purpose, would gain skills in useful trades that won't be usurped by some tech advancement... or so I think, anyway. And these help sustain other related fields, such as butchering, hide tanning... Working with one's hands, being required to care for animals, reaping tangible benefits from one's work... it just sounds like it could not be a bad thing.