In Colonial America, children were expected to be contributors to the family. Even in the formative infant years, children were discouraged from crawling and were placed in upright positions because it more appropriately mirrored an adult posture. Parents would often mimic the rapid development of children by using corsets and a vertical pole strapped to their spine to keep them standing up. Infancy was viewed as inferiority. The faster that a parent could develop a child into a contributing adult, the more prosperity the family would experience. Thereby, expedience in developing babies into young people was embraced.
As children grew, they were grouped not by age, but by size and strength since those were the qualities that would ultimately determine their social role in Colonial America. Children were always viewed as future adults still acquiring adult skills and behaviors. Therefore, they were educated morally and mentally as adults while they grew physically. This allowed for the transition from child to contributor to happen more rapidly once a person became of proper size and strength.