Having been brought up as one of JW's, I have to disagree with what JT has said. I still think the burden is on each individual to question what they have been taught is truth. I do agree that not everyone learns to question and that some situations make it harder to do this than others, such as being raised a JW, but I still think the burden lies on each person to ask the question "Why" and challenge their value-system.
I know I'm a little idealistic.
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