If violated, we can get injured and we can develop bad posture through multiple repetitions of imperfect form. (pathtofatloss.com)
While this can be done with feet close together, I prefer a slightly wider stance if doing multiple repetitions. (beastskills.com)
We developed a technique where the parent first performs each drill three times followed by the teen helping to reduce this anxiety and improving teen driving through multiple repetitions. (amazon.com)