I believe it would depend on what part of the country they are in that dictates how they would fare through a national power outage. Living in tornado alley, we have been without power for extended periods of time, repeatedly, and we have done fine. Those living in the cities would have a more difficult time functioning as they do not have the items available on hand to cope. Those of us in Mid-America, or Western America need only break out the camping equipment to survive. A BBQ grill to cook on, sleeping bags, Coleman lanterns and coolers and we are set for weeks! The lack of availability of these items in the major cities would lead to mass hysteria. Americans pull together to make things happen, so they could do this too!