I guess the real question is, what should/can the average consumer do about all this? Stock up on nonperishable food? Learn to hunt/farm? Drive less?
Grow a garden scaled to one's size and space and practicality. For some people, they can install fruit trees. For others, it means micro greens in the balcony of their apartment. Everyone can grow something.
Depending on where you live and the situation, adding chickens to source eggs is a huge boon
Most local grocery stores still have "loss leaders" ( items placed on deep sale to bring customers into the store to buy lots of other things)
The first question is who has the time for this. Well, for those with teenagers, give them some responsibility. My godson was sorely disappointed when I sent our full time cook to do other things. When he was old enough, I gave him a budget and made him procure our groceries. If he wanted to eat the luxury items he liked, he had to figure out how to budget for it after storing up on essentials. He had to learn how to clip coupons, use the online rewards programs, figure out what was in season, how to check the clearance areas and how to get up early to go get the stuff. After the first six months, he was then responsible for stocking in and rotating our emergency reserve in house. I think it was a good experience in that I wanted him to understand how to do without. If it wasn't on sale, or not in season, then it just didn't fit the budget usually. Or if he wanted a luxury type item, he had to game the budget and realize he could only pick one or two items if he wanted 10 different things.
I have "old man FU money" because I didn't go nuts like some NBA superstar and blow cash like it would always be rollling in like clockwork.
When he was young, I was busy with lots of work and we had that full time cook to shop, prepare, clean, store, rotate and manage. I didn't want him to take that for granted. When the time came to pull off those responsibilities, he began to appreciate how lucky he was that we lived in a situation where we could buy any food we wanted, as much as we wanted and had someone to do the dirty work to prepare it for us.
I could buy eggs, but the kid needed to learn to get up early and feed the chickens, clean their situation, manage their health and take responsibility for another life. It actually pained me to start because I grew up and had to fend for myself. But I have a responsibility to teach him how to adapt.
The mantra is always the same - Adjust To Prosperity.
There's no reason why everyone here with a house and the space for it can't have a years reserve of long term emergency food and have it done on a practical budget. I'm not talking some scam website where they sell you buckets of oats and powdered eggs with a massive mark up.
A thought exercise I gave him was giving him 75 dollars and saying you have to figure out how to buy enough food to last us a month. That was sort of unpleasant to start, as our food budget with a cook was previously like 1000 a month with lots of organic/heavily curated products, but he figured it out. Obviously this was not done in 2021 cost structures. But play the game anyway. For purely single guys here, start at 150 a month and see how it goes. Then scale it down to 120 a month.
For some of you, give your kids some practical scaled responsibility and make it a game for them. Make it competitive for them. Then all the inherent lessons that come with it evolve naturally.