I bought a box of Milkbones today and noticed that on the back of the carton is a photo of a young boy in a wheelchair with his aid dog at his side.
I think it is awesome how well these dogs can be trained and how useful they seem to be.
Of course many blind people utilize guide dogs but other people do, too. When I was in college there was a lady in a wheelchair, middle-aged perhaps, who attended classes with her dog. I never talked to her because I had no classes with her, just I saw her around campus often and that dog was always with her and seemed to fit in perfectly with large crowds of people.