instructors didn't teach more advanced technique until posture was correct? Maybe the lessons wouldn't be as fun but would it benefit students the most to be able to move without an arch in the lower back, with an elongated spine, head balanced on top of the spine, etc. before things like rise and fall, cuban motion, swing, sway etc. were introduced? Out of curiosity, is it common to see dancers on the silver curriculum whose balance is basically always thrown off due to the fact that posture was a concept never quite grasped by the student.