My miniature schnauzer, Mr. T, has reached the ripe old age of 16 1/2 years old with no more or less in the way of problems that most of us would have at the equivalent human age. Granted I spend more for his medicine in a month that for mine. And yes, neither one of us moves as fast as we once did. But all things considered, he’s not doing badly at all.
When we take our daily walk, he moves slowly. Usually he is behind me at the end of the leash taking his time about the whole thing.