I do not currently have a dog. My friend Good Dog Carl died of bone cancer at age 12 about 4 years ago. I am considering taking on another dog, for all the reasons you list, plus one.
Service to another
Studies show, and common sense supports the idea, that having a pet extends your life if for no other reason than that you have to be there to take care of them. Service to another, especially the helpless (which pets are in our civilization), automatically extends your life. At my age, such extensions become a larger focus.
I live in a retirement community for people with limited funds and family resources, and it's easy to see those who are just here to die and those who are here to live. The people who are here to live usually have pets, but certainly get out, do things, visit with each other, and engage with the world. A dog brings all that and includes the most beneficial reward, service to another.
I am sorry to hear that. I know it is difficult to lose a dog, as our family pet Liebe( a doberman) died of a twisted gut in the night and it was a very shitty time for the family.
I agree with your reason, it's a very good one. It also applies to so much more than just dogs, pets or animals. Human connection is also a powerful force in extending one's lifespan.
Thank you, and thanks for the bump in my steem!