I have had dogs that live from 9 to 16 years of age. The average age of passing being 12. Ironically, the one with the best diet, most exercise, least vaccinations, was taken out at age 9 due to hemangiosarcoma.
A lot of these things have a genetic component, the puppy mills and backyard breeders that continue to breed dogs even when they are aware of hereditary disorders, doesn’t help
I think of age ten for a dog to be equivalent to age 50 for a human . Some are in good shape at that age, others, not so much.
Look at the parents (same thing with humans) if you want to guess at their longevity.
