saw a post the other day about somebody trying to train a horse to do something (I forget what) and the horse was very defiant and anxious. The horse was 26. My 23 year old does exactly nothing he does not want to do. We ride around the field, play around over very small fences once in a while. He’s a bit arthritic but otherwise very sound and healthy. At what point has your senior “done his time” and becomes the old man that only does what he wants to do?