It's not been said enough that adults when they start to study are expected to ask questions and evaluate what they have learned, to come to a personal decision of whether it is the "truth". Children are not given the same benefit of the doubt. They are told it is the "truth" before they have any ability to fully understand what is taught, and when their critical thinking starts kicking in during their teenage years and they begin to have honest questions about areas of the doctrine that do not make sense or seem to be contradicted by other facts, IT'S TOO LATE! They would now be questioning years (if not a lifetime) of what their parents, elders, etc. have told them what to believe. "How could you doubt what you've believed your whole life? You've given talks in the TMS and gone door-to-door for years! Just don't leave Jehovah, it'll break our heart." An adult who studies has no obligation until they become baptized; a child is completely expected to get baptized and remain a Witness as a matter of course. Rather than giving children/teens the same freedom to evaluate the "truth" and walk away with no harm done if they decide it isn't the truth, JWs tend to view such natural questioning as dangerous and an excuse to get them into the elders' chamber for some straightening out.
