Southern Afghanistan 1000 years ago was the learning centre of the subcontinent. People from what is now India (both North and South) use to go there to study in their universities. Now after 1000 years, after the ravage of the muslim conquest of Afghanistan, this once mighty country is back to the stone age. People grow beard, lives in caves, sell their own daughter for money, prevent learning etc.
They've been like that since the destruction of their culture by the muslim invaders, and now the afghan are muslim themselves, their culture is gone, their knowledge is gone. All they are left is the consequence of that muslim invasion.
This is a reminder, what happen when a people lose their culture, identity and religion.