How do border collies help disabled people?

Border Collies are what are known as Type A of high-drive dogs. They are highly intelligent, but are rarely chosen as service dogs because they have so much energy. If not properly mentally and physically stimulated, they can fixate. As well, they only respond to the training of one person. They count voice as part of a command, so each person has to train individually. This obviously is a problem for agencies devoted to training service dogs.

That said, it is not unheard-of to have a service Border Collie. Still, these are quite rare.