What was the significance of child labor in Egypt, Mesopotamia, Sparta?

In ancient states like Egypt, Sparta, child labor was common, but only among slaves. Children of slaves did almost the same work as adults, some were entrusted with cleaning, sewing, grazing animals, and harvesting. Children made a great contribution to the development of civilization, doing work that adults were not suitable for. In the rich inhabitants of Egypt, children did not work, they were trained in various subjects: shooting, fencing, literacy. All children worked in Sparta, even the children of the tsars and the council, they were brought up strong from birth.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.