Dude people don't eat animals that die of old age. You really think people say 'oh my beloved Bessie has had a good long life, let's carve her up.' The meat would be awful and not worth it anyway.

Don't pretend that meat eating is preventing waste because it literally doesn't work that way. Animals are eaten in their prime or younger. Nobody even commercially eats adult sheep because mutton is tough and awful.

You either eat them when they still have a long life ahead of them or you don't eat them at all.