People who aren't preppers seem to think that people who are, are either a little bit nuts or a lot. Yes there are those who are quite extreme but who knows they may be the most enlightened people at the end of the day/world.
Prepping for me is about taking control of our life, if the something big happens or if it doesn't then either way i am looking after my family, friends and neighbours. I think that's worth being called nuts.
While you live week to week you are controlled by the whims of the supermarkets, as long as they control your food, you don't have control of your food security.