Food has always been a tool the elite have used to control the masses. When you control the food supply, you control everything, even life and death. A starving man is more likely to sell his soul for a potato then someone with a full tummy. The relatively free market of food production and distribution that has been in place in this nation for a few centuries now has led to unrivaled prosperity. Food can, in fact, be grown for practically nothing if you have the land, the time and can afford to buy just a few heirloom seeds to grow the organic vegetables necessary for good health. This will save you money, is better for you than grocery store vegetables which may be genetically modified or may contain unwanted chemicals, and helps you to become less dependent on the state for your survival.
It is the last part of the above statement that frightens government officials. They want you dependent on them. For some, it makes them feel important. Others may just want to feel needed or helpful. Still others may just want the paycheck. Whatever the case, they don't seem to just want to leave you alone to your own devices. Perhaps that's why they're attempting to pass laws making it illegal to grow your own garden. Perhaps that's why they want to make sure you're a compliant grass farmer just like your neighbors. Perhaps that's why they're trying to control the food necessary for life.
There was much reporting done on the story of Julie Bass from Oak Park, Michigan, who was arrested for growing a garden in her (gasp) front lawn. There was so much reporting on this story, in fact, that the city of Oak Park decided to drop the charges. They had claimed that the citizens of Oak Park were in favor of such ordinances that made it a crime to have anything but nicely manicured, inedible, Kentucky bluegrass lawns (an exaggeration, but you get the idea). I think they were rather surprised when the Bass's neighbors came out decidedly against the arrest. Rather than apologizing and admitting they were wrong like normal people would do, however, they did what you would expect of government control freaks who think they're perfect. They found something else to charge poor Julie Bass with. Things get tough for you once you're on the government's shit list.