>>37
Alright, I'll explain the concept to you one more time as slowly as possible and then I'm done.
When a baby is born it's brain is small and underdeveloped. This baby is not capable of abstract reasoning.
As this baby grows up it's brain develops in a biological, measurable sense. This development is completely independent of culture or education; it is completely physical/biological.
At some point in this child's development it will become able to understand and reason abstractly. Before this point it is physically and biologically impossible.
This age has been determined to generally be between the ages of 7 to 11 in the average child. The methods for determining this have been scrutinized and developed extremely well over the past century.
These methods are designed to remove all exterior influences except for the biological development of the brain. Independent of culture, sex, race, education, et al.
Theres a reason this stuff is taught in every single child development course at every single university. It's because it's not about culture, it's about the biological development of the child.