I wish dogs lived longer. At least as long as many domesticated cats tend to. If I had my druthers a dog would live at least 30 years and not get a single grey or silver hair until no earlier than age 28.
I know what you mean. I've always wondered why some evil people can live well into their 90s, but a dog or a cat, good creatures who only want to love and be loved, can't make it into the 20s.