It should be mentioned that while authentic beliefs can "happen to us without our concious attention" authentic beliefs can also be formed when we conciously examine evidence for/against an idea, even putting the "expert" beliefs or assertions to the test to (in)validate it.
when you refuse to do this, it may lead to actually choosing your belief by omitting pertinent information that could lead your belief system in another direction.
adhering to the many things we have been indoctrinated with (religious and otherwise) without setting out to honestly and without prejudice prove whether these things are true or not has the defacto result of choosing the indoctrinated thought structure (belief)
sometimes those who come here asking what to believe are simply in the middle of a belief system collapse and they should be supported to the extent possible, helping them to learn how to think if necessary but never what to think.
Thats my 2 cents anyway.