I think, in practical terms, I have learned more concerning the world around me, and how to work through an emergency, than most. My father taught we how to manage my finances, maintain vehicles, and be a man. My grandfather had a genuine love for animals and taught me to care for them and also taught me how to hunt successfully. My grandmother taught me to prepare food. Today, many are concerned with being prepared. We call them preppers. I think they are simply self-reliant folks who do not wish to stand on the corner and beg for help with the sheep when things go wrong. Firearms are a critical part of the plan too.
They may raise their own food because they love to. They may be prepared because they do not like the drive into town. Some have a genuine unease concerning events that may be on the horizon. It is always best to be prepared rather than not.