Yes, people will need the skills. If if ever gets to that point, dehydrating in the sun and smoking will be the way to preserve as jar lids will be gone (even the reusable Tattler lids will wear out the rubber rings). Foraging, etc.

I homestead and we grow/raise about half our food, and store it (big time prepper). I'm a former nurse and now an herbalist, and I forage.

I'm trying to give classes in my local area, small rural area but no one but the really old ladies know any of this. I taught a class on how to make salt from our local ocean water - only 9 people showed up and they were blown away just with the concept, they thought you had to buy it in a box or plastic container, LOL!

Sadly, although there is a ton of interest - not many actually take a few hours once a month to learn a new skill. Some of the classes are even free...like the saltmaking class.

I'm teaching how to pressure can meat this month, we'll see if more people show up...