Well I have a aquaponics setup but it's for indoor gardering beans etc. I had the police over two times already. If I had grown weed I would have lost my house and would be in jail. But my way is like what do you need in life what are the basics....
Food, water, house, warmth and family...
People are such spenders why grow your own if you could buy it in the store...
My question how much of your income do you spend on food? I had days I spend like 20-50 euro a day... 1 person.. Yeah.. right..
If you could grow your own stuff and make your own water you would be independent but.. If you show the neighbours they could do it also with a snowball effect..
In the early days lots of people got vegetable gardens they trade with each other. Or freeze it for the whole year. Now you would have the whole year all the vegetables you want.