She was taught to never question the church's teachings. Over the years, she has gradually learned that many of the things she was taught by her parents and church, are sometimes opposite of what the bible teaches.
Excellent point brought out, Mike. The principle reason why some pastors or churches tell people not to question what they are told is because they are afraid that if they do, they just might come to find their teachings are not what the Scriptures teach.

I've always said, the Devil never likes to be questioned. God, on the other hand, doesn't mind it one bit so long as the questions relate to a genuine search for the truth. He knows who is sincere, and who is looking to excuse themselves from believing.