We would. I have THREE fridges filled with food I've made and frozen. I have cupboards full as well. We might have lacked fresh fruits/veggies/milk/eggs but we would have survived for a very long time. Would you?
Some people are able to stockpile food. Some live paycheck to paycheck and still don’t have enough to put food on the table each day. They can’t afford to stockpile.
I have enough food to last a few weeks, slightly longer with rationing. However, I can’t afford to purchase a lot of food (let alone store it).