I am beginning to wonder about horsemen and horsewomen insisting on "playing" with their horses.
When I started out riding, people did not play with their horses. It was heavily discouraged because it ENCOURAGES DISRESPECT. If you wanted to get your horse fit, you WORKED him properly, schooling him in a well thought out program.
If all a horse does around you is play he starts thinking that he does not have to work at all unless he feels like it.
You have to TRAIN a horse to obey you.
Am I just an old fashioned fuddy-duddy?