Coordination and the ability to use their hands are almost fully developed by age 4, and preschoolers are gradually learning basic self-care skills. They can now dress and undress without assistance and brush their teeth; some children may even be able to lace their shoes.
References:
Shelov, S. P. (Editor-in-Chief). (2004). Caring for Your Baby and Young Child: Birth to Age 5. The American Association of Pediatrics. Revised edition. New York: Bantam Books.
