I remember.
My point here is that in my humble opinion, that may happen in the U.S. in some major areas of import/export for example.
When the U.S. collapses, there will be no coming back. There is no one coming to force peace, no food to trade for, all you have is all you will have and as you said skills will be what you survive on. Farming, security and such.
My concern is that to many people have romantic inclinations of SHTF. We have not had children throw grenades here since the middle 1800’s. The remedy for crop failures is a trip to the grocery. 3 months, won’t get you through that. I will say if a person has a job, it is better to skip a payment and assure more food for your family. Again, it is just my most humble opinion.