I am of the opinion that children should be allowed to be children. Until they are fully able to comprehend what it is that is being asked of them, around the age of thirteen. Until then we should be only teaching them the basics reading, writing, and arithmetic.
Children are open books and easily lead. Why should your belief, groups, teams etc; Become what your child has if the child is not able to make a discernible choice. Isn't fairer to give them that choice when that are able to make such a choice? indoctrinating or inculcating isn't choice it's abuse. Children aren't born racist that become racist through their parents or groups.
We are never going to be able to stop all indoctrination. Patriotism is one that is hard to counter.
I am English, however I am human first and foremost. The world is my country. I hate no man, no matter what colour, country or creed. I will protect myself and my immediate family, but I will not take up arms for another man's god or pleasure. too much death comes from religion. Religion is an incitement to violence, a book professing the love of god for man should not contain words like kill, war, hate, etc.. I have a deep disdain for all religions but not for there adherents, they are merely indoctrinated victims.