The majority of people in this country ran SCREAMING from the farm the first chance they got. It's hard, dirty, and doesn't pay diddly. Most would much rather work at a day job - (even McDonald's might be easier and more profitable), a few will garden a little bit, and
talk about a kinder gentler world where people grow their own food.
Even in areas where there might not be enough space to get all the parts for traditional organic crops, manure, etc Will Allen in Milwaukee (fish-augmented farm), or Ron Finley in Los Angeles are examples of how one might adapt in more populated areas.
As economic conditions continue to deteriorate for many, it would be a good thing to promote. There are exceptions, and anyone who wants to can certainly make those methods work, with the bonus that every plant they grow is a few bits out of the maw of big agribusiness, which is a worthy goal. And one never knows when they might wish they had planted even a few scraggly plants just a few months back.
It is a tasty hobby too. My garlic is doing really well. The scapes are starting to head up to curl, soon to be pesto, or heated in some olive oil and mixed with eggs. Herbs are almost effortless to grow. My lawn clippings just get mixed in with the Alpaca poop I get from a neighbor - I just have to shake my head as the neighbors around me pay to have theirs hauled off.
Thanks for that.