Simple answer? No.
Long answer: Students interested in joining a teacher training program often ask me this question, and the answer is quite simple; If you have found yoga to be an important part of your life and your personal growth, if you have a sincere desire to learn, and if you are passionate about bringing all the rewards and experiences of yoga to others then you are a suitable candidate to become a yoga instructor. The process of teacher training will help you to further develop your practice, and perhaps this means that you will be able to safely practice more yoga postures as a result, but more importantly you will learn accessible options to make yoga postures safe and joyful for all participants.
Keep in mind that yoga is not just about the poses, but about a lifelong practice and an intentional state of being that is inclusive, accepting, compassionate and loving. We have had students of ages from 17 to 70 successfully complete the course and go on to become inspiring and successful teachers. To be able to safely demonstrate basic yoga asanas is important but does not exclude teachers of differing levels of skill and ability. What is most important is that you can demonstrate the fundamental principles of yoga on and off the mat.