When toddlers start walking, they develop their sense of balance with the help of the central nervous system through the contact of the soles of their feet and thus control over the muscles in the fight against gravity. To do this, however, it must be possible for the foot to be able to keep its contact unrestricted and unaffected. The more mobility the child's foot can use, the better the child will be able to find its balance. It is well known that this works best barefoot or with socks that must by no means be too tight.