I am no doom and gloom survivalist. I am just the opposite actually.
But I do see being self sufficient as being a priority. It does not take very much to think and plan ahead. I think, for me, it comes from growing up in the mountains. We had plenty of winters when getting to the store was very difficult - too many miles to walk over frozen ground with gale force winds and no open roads. It was just much easier to ensure you had a good supply of staples "just in case".
Now I live in suburbia and can shop daily. But I still have a good supply of basics on hand. Once, last year, it looked like we might be cut off our routines due to local flooding. I took stock and realized we had enough on hand to weather
out about 3 months. Thankfully the need did not come to pass.
Then there were the forest fires a few years ago. We were on our boat for a week of sailing on our favorite lake. The winds had shifted and fires that we were thought were "far away" were suddenly just a few miles over the next ridge. Local roads were being closed and the air was heavy with smoke and even some ash. Once again we did not have to rely on what we had, but our immediate assessment showed that we could have stayed on our boat for another week or even two. Mind you this is a 26 foot Macgreggor x. Not spacious but we had planned and packed well.
I have been very glad to know that we are usually positioned to be self sustaining in case of some emergency