Wally you make a good point, but how common is common sense? In my dealings with a lot of people it is about as abundent as hens teeth. I know that, to people who are already good horsemen, a lot of it is stating the blindingly obvious. But there are thousands of horses in livery yards around this country who their owners do not know how to handle safely, and cannot be ridden at walk, trot and canter without either the rider being put in danger or being frightened. What tends to happen is people 'cope' with the horses and ride them in very limited amounts or circumstances if at all. At least Parelli gives them something safe and educational to do playing the ground games. It gets the poor horses out of their stables, and starts the owners understanding what makes their horses minds tick. That if nothing else makes it worthwhile in my book.