Grow your own food. Start now not later. Make friends with some farmers and ranchers.
Exactly Patriot.
Back in WWII they used to call them "Victory Gardens". Grow your own food so the troops can be fed by the "bigger farms/ranches/etc". People lost their way when they decided that growing grass because "pretty" was more important than growing food.
[edit] Also. A lot of young people have no idea where their food comes from and have no concept on how to grow food or bring up animals. When I was young my family did grow some food but my parents did not place a lot of importance in it. However, they would help me if I wanted to do something. One of the oddest things I did was grow carrots indoors in a hanging flower pot. It worked out just fine since they were near a good south-facing window. Growing food is not hard.
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