For sure! I'm in college, but one day I will definitely expose my children to different religions, cultures, and even philosophies pretty early. I think sheltering children only hurts them. They will have to face it one day, anyways. Why not do it at my pace?
I would NOT teach my children to study false religions NO...
There is one God
There is one Son of God
There is one Holy Spirit
There is Heaven
There is a Hell
There is an after life and an eternity to face...
We have a SOUL that will live forever SOMEWHERE.....FOREVER
Parents are responsible to teach their children the truth of God's Word...
If they showed interest in theology then by all means. Otherwise I wouldn't push it on them.
Theology is basically the study of folklore and mythology. It's a good thing to know if you want to learn more about cultural constructs but it has little use outside of that.