Very upset! Bought a Tula for my 8-month old and showed my mother in law. However, she told me such ergonomic carriers are not good for babies' development, and will cause their bones at the hip area to grow outwards and affect their walking next time. She forbids me to put her on the carrier and says a good carrier should make sure that the legs are as closed as possible. Told her the m shape was from the babywearing consultants and she said that the consultants are out to earn people's money and will not take any responsibility if the baby does not develop well. How?????