When I was living alone as a single person it was pretty easy for me to avoid wasting food. I knew my own habits and my own level of hunger so I was able to effectively control my food buying and preparation. Since moving in with my wife, however, and especially since having kids it has been harder and harder to accurately predict our food requirements and minimize waste. I'm sure the larger the population a single entity is providing food for the harder this line is to walk.

Nope. I'm a great cook and baker. I've always eaten everything I've made. But I don't make more food until I've finished off what I've already prepared.