I rent. Most landlords have severely limited what can be done inside the house and in any yard space. Many locations did not allow plants to grow well in window boxes due to issues with lighting from poorly designed windows, etc. Watering gardens costs money, as does improving poor soil (or working with polluted, heavy metal laden soil), or supplemental lighting. When looking at rentals in my price range, I have run into slum lords. A bit poorer, or being inexperienced in how to go about renting/caught in one of many situations that would require renting without seeing a place in person, and I may very well have been living in one of the one room spaces, some lacking toilets, some with completely rotten floors, some lacking electricity, and many with no windows. If you are one of the people who are too poor to rent you may end up shelling out more in the long run by living in hotels (the book "Nickle and Dimed" explains this...or I've seen plenty such hotels driving through some areas), and will find gardening hard to do. I can also attest that if you live in your car...you will have a hard time gardening. This is especially true if you have no idea how to garden...or cook. I will have to try to find an article for it, but does anyone remember a project that provided homeless people with housing. The problem was, they did not understand that people would have to be taught how to live in that environment (and I'd imagine our gap on understanding mental issues didn't help). Many of the homes were ruined when the new residents did things like use the corners for urinals, try to light a trash an fire in the middle of a room for warmth, etc.
Did you know that in 2010 41 percent of SNAP participants lived in households where someone is employed? Have you tried working three part-time jobs, then coming home to garden? Or riding public transportation to a workplace that is far from where you live?
If people around you are abusing the system...please report them.