I think the goal here is going distributed so that by moving the end produce closer to you, you save on packaging, logistics, and other expenses. Plus growing something gives you joy.

Doing that in schools teaches kids about farming, about food, and how it gets on their table. I'm doing the same at home to teach my children the same.

Also in the times of the crisis you reduce the pressure to producers and shops by consuming your own instead of going to the shop.