Absolutely, unless it's not very deeply personal why do they even have reason to consider challenging their beliefs? And one thing that so many people misunderstand is that they think their beliefs are absolute truth. No... they're just beliefs, and although they might seem right, they might not be.

If I was told that the sky was yellow my whole life and had never heard otherwise... I'd most definitely think that a person telling me it was blue was crazy. Just because you believe it, doesn't make it true.