I have the same problem.
My only living child is married with two children and is financially very well off. I have attempted to convince them to prepare for catastrophe but the only thing I have gotten through to them is to stock up on food if for no other reason than it is probably a good investment.
My parents could have gotten through just about anything. They both grew up under harsh conditions during the depression but they both died years ago at an old age.
I have the same story line. But I would add that my parents could get through just about anything with the mutual support of neighbors, friends and relatives. My parent's generation knew the value of cooperation and community. They didn't need "community organizers".