I concur. In a mass catastrophe, the government may be overwhelmed and many small failures will cascade into several large failures. We've seen that in many cases. New Orleans is probably the biggest example in recent history. The Boy Scout motto is Be Prepared. While not all of us are Eagle Scouts, we should all do our best to be prepared.
I really want to get a solar system for the house with storage batteries, but the local provider here in California, Tesla, doesn't work on metal and tile roofs - they prefer asphalt roofs. So I'll need to think of a better backup solution.