Apparently we are in the scenario where one parent is on the field and other at home. At home parent could and would tell their 5-11 years old to take the food to the other parent and other field workers. Yes they worked and had chores. They were fully suitable for taking food from place a to place b. They also herded animals by themselves or took care of younger siblings.

> Until the Industrial Revolution, there was nothing even close to what we nowadays call "childhood".

That has nothing to do with what I wrote. The 5-11 years old people existed.