We got a small, older dog a couple years ago, mostly for my wife. She has health issues and can't walk the dog, so it fell on me. At first I was kind of resentful. The dog is ponderous and doesn't really take direction much, and I'm way too short on free time.
Well, I've lived in the neighborhood for ten years and only when I started walking the dog did I start meeting a bunch of people in the neighborhood. I still would like an extra 30 minutes of free time a day, but my life is a lot richer socially.