You are only supposed to use their littera-trash to "test(??)" your faith. Those who were born in are forced to comply with their parents' rules, which usually mimic the rules of the Kingdumb Hell and are often even worse. They are never allowed to read the Bible and just the Bible, or to use independent sources to verify the accuracy of Washtowel doctrine. Usually, they don't even have anything to cross-reference the doctrine, especially if the parents heeded the advice of the Filthful and Disgraceful Slavebugger and refused to buy a computer.
Even once they turn 18, the structure of their lives usually forces born-ins to remain faithful to the Filthful and Disgraceful Slavebugger. They are not supposed to go to college, so moving out is not going to happen. (And it usually keeps getting pushed back.) They are trained to accept crap jobs, so they become dependent on their parents for their very sustenance. Too many live in apartments where the landlord and owner is a witless, work for witlesses, or both. Many deal solely with witlesses in their business. If they try to examine the faith, they will lose more than just their "prospect" for life. Their jobs and homes could be taken away from, and/or their customer base (all witlesses) could all boycott them if they become apostate.
It all goes back to that damn September 2007 Kingdumb Misery about using independent sources to test your faith.