I grew up around dogs of many breeds. My mother raise and trained dogs including the intelligent working breeds such as German Shepherds, Golden Retrievers, and Dobermans, some were used in search and rescue, some used as service dogs. Many my mother rescued these animals from shelters, from the streets and from abusive situations and rehabilitated before re-homing. It is why I prefer to adopt a dog rather than buy from a breeder.
One I have right now I have considered getting him certified as a therapy dog so I can take him to total care homes to bring joy to the people there. He is also being trained to herd sheep. He is a loving and patient animal. he was returned tot he pound three times, but when I saw him I saw potential.
It takes a special animal and a special bond between handler and animal to do that.
It is difficult being disabled, and it is difficult not looking disabled, I can tell you this because I am in that boat currently. My animals are my solace, they give me a reason to get up , they let me focus on other things other than my own pain.
I don't have a service dog, true, but it doesn't mean I don't understand the significance of one just because I made a joke.