Handling the body is never an easy task. Even if you think in your head, "I should move like this," when seen from a third-person perspective, it often ends up looking awkward and jerky, far from what you intended. Moreover, people inherently have a major flaw of feeling comfortable in bad postures.

Unless someone forcibly instills the best posture in their head and torso, perfectly aligned with joints and body dimensions, a continuous process of correction is necessary, repeating those corrections to the point they become ingrained habits. If, by chance, a bad habit forms, or if the body grows …