I am an Atheist, and I personally don’t want religion taught in schools. When they say religion, they mean Christianity, and when they say Christianity, they mean their own denomination. Considering how many different denominations there are, that leaves it open to definition, and most of them don’t agree with each other.
Even if you taught religion based on history only, you are looking at 12 major religions globally with 4,300 minor religions. If you taught only history and not beliefs, you still wouldn’t have time to teach any other subject. This is why those who go into religion as a vocation, study for 8-12 years after high school, and pretty much all those classes focus on only religion.
There is no logical reason for religion, the Bible and prayer to taught to kids at school, since the majority of children come from families who believe different things.
Christians don’t want to be forced to learn Islam, Judaism, Paganism, or science as a substitution for biblical teachings. Yet, they just don’t understand why Muslims, Jews, Pagans and Atheists don’t wish to be forced to learn Christianity. But the ironic thing is this: most Muslims, Jews, Pagans and Atheists know more about the bible and the history behind it than most Christians.