Folks who grew up in an environment where they were lacking necessities tend to keep the fridge full and lots of supplies "in case something happens". They comp

Folks who grew up in an environment where they were lacking necessities tend to keep the fridge full and lots of supplies "in case something happens". They compensate due to uncertainties that they had growing up. Folks who grew up always having plenty don't usually worry much about keeping food reserves or waste. It's clear why this happens: circumstances change but people don't often stop and re-think attitudes which they've incorporated.