I just read the best little blurb I've ever seen about why to prep:
Throughout our world’s history, man has always known how to survive: build fires, hunt, preserve food, find shelter, find water sources, etc. In just over the last 100 years, all those skills have been lost due to technology and our modern infrastructure. Now, don’t get me wrong, I love my Android smart phone as much as the next guy. However, as a society we are a lot more fragile than people think. Any interruption in the supply lines of our hugely dependent society is going to cause mass panic. Look at Hurricane Katrina. Better yet, look at the Congo. “Well, this is America, not the Congo!” some people will say. Consider this: Take away the American people’s access to food and water for more than a week or two and you will see atrocities just as bad or worse than the Congo. Desperate people are the most dangerous kind. When someone’s kid hasn’t eaten in two weeks and they are watching them die, do not think for one second that the average American will not turn into a killer to get food for their child. It’s just human nature.