Being race dogs greyhounds often have to learn how to use the stairs as adults because as a race dog everything is flat. This is one reason most adoption agencies foster greyhounds first so that the dogs can learn what everyone else takes for granted.
Greyhounds are still raced in many countries and once they are retired someone still needs to take care of these lovely hounds. My adopted lovey can run free in a completely fenced in yard. She can run so fast I cannot keep up with her with my camera!