absolutely! - kids have
no business squatting without having first received proper instruction in it, and if I were you I would put a stop to it
immediately - who knows what other dangerous, unsupervised activities your daughter has been emulating from her friends - throwing a ball? playing hopscotch? jumping rope? for pity's sake, get a handle on the situation before something really terrible happens, and your kid starts playing spontaneous pick-up games of dodgeball or ultimate frisbee!
if you don't believe me, just consider that I have a Masters of Science in Physical Therapy from Columbia University College of Physicians and Surgeons, and work full-time in pediatrics with children of all ages; as such, I work with children who luckily have not been able to figure out on their own how to skip, and have therefore avoided picking up any bad and even potentially harmful habits; fortunately, since I have a Masters of Science in Physical Therapy from Columbia University College of Physicians and Surgeons, when I teach them to skip they are afforded a rare opportunity to acquire the skill from a truly Evidence-Based Medicine perspective; (I chuckle at the other grown-ups and children who have "figured it out on their own"
, and are unable to appreciate that when I skip, because I have a Masters of Science in Physical Therapy from Columbia University College of Physicians and Surgeons, it's not at all the same as when they do it);
I will pray for you and your daughter's speedy recovery...