Semantics. Call it what you will.
I was raised in the Roman Catholic Church, my parents still belong. When I was growing up it was very difficult for a Catholic to get permission to marry a non-Catholic, and if permission was granted it was with the stipulation that all children would be raised as Catholics. (My maternal grandfather and my wife's father were both protestants, but none of their children were permitted to be raised as such.) Basically the Church said, "Your religious beliefs are fine, but don't try to teach them to children of Catholics."The mainstream Christian Churches do not try to prevent contact with other sects or religions, nor do they condemn them.
Yes, it is. But there is a difference between teaching students ABOUT the major faiths and indoctrinating them into a specific religion. Showing students the differences and similarities between religions doesn't offset the "brainwashing", or teaching if you prefer, which tells them that this ONE particular religion is the only TRUE religion.All schools that I know of here, including Roman Catholic and Church of England schools teach their pupils about all the major faiths, although they obviously follow their own particular forms of worship in school assemblies and the like.
And that is as it should be.