All social mammals have evolved species-specific social structures and behaviors for learning and transmitting the skills they will need to survive as adults. Our own species evolved over hundreds of thousands of years to live in small mixed-age communities where children are embedded in adult activities, surrounded by older and younger children and grandparents, immersed in the natural world, free to move and play and exercise their bodies, and where they are able to observe, imitate and then participate in adult work as they become developmentally ready."

Carol Black

Articles
https://carolblack.org/

Film
Schooling the World (66mins)