Oh, I have no doubt that it is impossible for every individual to grow all their sustenance. You are completely correct. I was referencing something more along the lines of having a small garden box / a few pots to grow herbs and spices in. I feel as if almost everyone has the means to accomplish this eco-friendly task. It couldn't take more than a few minutes per day to do.
Ah! Your friend has a hobbyset I'd very much like to reflect. Do you know if farmers markets charge to set up a table?