As someone pointed out in previous thread, this is the first time in America’s history that having more than a couple of weeks worth of food in your home is considered strange.
Nail on the head. I suspect that a lot of people wouldn't think to count themselves as "preppers" or "survivalists" who have 30 days' or so of supplies on hand just as a matter of course.
There's a lucrative industry in selling MREs, but for most uses that's silly. If you live someplace where you're likely to encounter a blizzard, keep a couple in the trunk in case you're trapped in the car. At home, it's simple enough to be prepared for 99% of scenarios: just keep a supply of canned veggies, dry basics like beans, rice and ramen noodles, and a big bag of charcoal briquettes. Maybe some energy bars and multivitamins. A well-stocked freezer will hold you for the first few days.
The key is to remember that you're not stocking a Civil Defense shelter, where you stockpile food and forget about it for decades. Don't buy "survival food" that will go to waste if the world doesn't end in the next 3-5 years; buy food you'll actually eat, eat the cans closest to their expiration date, and replenish the supply as you go.