Although originally developed mainly for Western riding and stock uses, it has also been seen competing in endurance riding, three-day eventing, show hunter, and driving. It jumps well, and can be used for dressage. Originally, breed club shows did not allow people over the age of 16 to show POAs under saddle; adults could, however, show them in halter or driving classes. In 1973, the age limit for riders was raised to 18, and in 1987 it was decided that adults 19 and over could show horses two to four years old under saddle.