Cat Food

Back when I was young, there used to be stories of old people buying cat food for
themselves to Eat.. Because it was cheap and all they could afford.
I thought about that yesterday to order food for my Cats.
Not only like everything else it's not cheap anymore, but hard to find.
Chewy nope,. Same with Wal-Mart, online or in the store. Neighbor went to shop
yesterday. Tried to get some for me, nope. Stores are empty.
Anyone else have this problem?
Slim pickins at Wally World. I pick up a few cans whenever I stop by a different store. It's probably imported. How long is it good for sitting in a container ship in the bay for a month?