Children have been moving in sneakers for physical activity for so long we seem to have forgotten that feet do have sentient qualities. They can be used to grip the floor for strength and balance, and their different parts (toes, ball, sole, heel) can be more easily felt and used when bare. Furthermore, there is evidence indicating that going barefoot strengthens feet and improves body alignment. Young children feel a natural affinity for the ground that can be enhanced by removing all the barriers between it and the feet.