Hi. My horse, Cooper, and I have recently started working towards doing long trail rides and I have asked my parents how to get him to canter. He just trots faster or stops and its becoming really frustrating. They say that because the saddle is old and doesn't fit right, it could be painful to canter. Dad also said because he is twelve, he's too old and lazy. I think he wants to canter, but I want to do what's right for him. Please help!