Many riders switch trainers as they grow and become better riders. There are many great riding instructors that can get you to a good start, but as you begin to develop your skills and focus your riding to a certain area, you will want the best trainer you can get for that area. If you started out riding western pleasure and decided to switch to jumping, you will want to find a trainer that can teach you to jump with proper form. Your trainer will understand if you need to switch to become better at your riding. In fact, many trainers are still taking lessons from even more experienced trainers so that they can train you.