I’m in an interesting situation - all my neighbors have land, but almost all are older/retired. All the ones I have met are well-armed but haven’t planted gardens in years. At least I know they have the skills. I save enough seeds every year to provide a decent supply of seeds to neighbors who might decide to garden again. I also keep a rooster so that I can provide baby chicks to neighbors who may want to raise chickens again.
At least they have the skills - they just at some point decided it was easier to stock up than grow :-)
If things get bad enough their kids may come back home if they have any.