Don't listen to the old saying "an old dog can't learn new tricks". A dog can learn at any age. It can take longer to training a behaviour that's been going on for a long time but it doesn't mean we can't manage and change it. Also, there are a lot of games and activities we can do with dogs who experience mobility loss. The breed doesn't matter either. There are multiple ways to teach thing. We will find what keeps your dog motivated!