Too Old to Die

The Protagonist Is an Older Man or an Elderly Person, Anything but a Teenager

Every protagonist in Tomato's novels seems to be a young man, and I'm getting tired of it. Are there any novels with a tough older guy as the protagonist? Any genre is fine, though a realistic post-apocalyptic setting would be ideal. 🤔

Any Novels with an Elderly Main Character Who Is Invincible and Doesn't Become Young Again?

Looking for Stories With Elderly Protagonists, Not Just Old Folks Who Act Like Idiots