I swear American fantasies about societal collapse are so frustrating. Everybody assumes people would turn to violence and greed immediately. Either it's because it looks good in movies or they genuinely think they suck.
Meanwhile in real extreme conditions everybody is all "let's get all the famillies together to help each other gather our crops" and "I have too many lemons from my lemon tree, do you want some for free?" "Oh, only if you take some of this fish I got that may go bad instead".