
I don't want to take the heartless side of this and Kudos to your wife for her efforts Cid but I have a slightly different take on the original story.
The store management didn't say that people were buying less food just that they were being careful about how they spent their money.
To me that brings to mind buying a twenty pound bag of rice instead of buying it in one meal prepackaged boxes (Rice a Ronnie). Or a five pound canned ham for twelve bucks vs. sliced deli ham at $7.50/lb. All those prepackaged meals that pop into the microwave including the popcorn are probably staying on the shelves but the bulk commodities are probably doing all right.
The stores problem is that the mark up on the prepackaged preprepared stuff is much higher then for bulk items like sugar and flour so people may well be still eating as many calories as before but the stores bottom line is on a diet.
If you have two adults working in a family then no one has the time or the energy to cook so you eat a lot of pre made/prepackaged stuff as well as buy take out or eat out quite frequently. Let one or the other get laid off and the one that is home Should start cooking as he or she has the time and their efforts can go a long way towards making up for the lost income. They should have time to tend to a garden too. Of course some will not realize the importance of this and keep ordering delivery pizza as long as the money lasts but many will take up the challenge and keep their household on an even keel as long as there is one decent income.
It can be said that many in America today have no idea how to get along as a poor person as they have no experience with it. Imagine a Woman from Haiti dropped into your local supermarket with two twenties in her pocket. She is going to come out of there with a much different bag of groceries then you or I will.