You may have noticed your child’s feet were flat when you saw his or her footprints in sand or if your child walked on a flat surface with wet feet. Arches, the curved part of the bottom of the feet, are like a bridge made of bones joined together by ligaments. They help absorb the shock of walking and distribute weight on the feet. Although some children develop arches as their “baby fat” disappears, some children don’t. If not, it’s still considered normal, and usually not a cause for concern.