What an interesting set of questions. Well, I grew up in a religious household, and ended up in a completely different tradition when I became an adult. Was there stress-the better question for me is 'Why is there STILL stress about this?'. So, in answer to your question-yes, they experience internal conflict, particularly if the tradition they were taught has loyalty lessons (most do-as a matter of course). The internal conflict is also linked to trying to understand how God can be one thing, and Man have so many interpretations of what that is, and should be. Taking classes is generally a learning experience, but it can be extremely painful if the experience slaps 'truth' as it is understood in the face every time the student is in class. Imagine the thought that even hearing of another doctrine could cancel your life of love, piety and servitude-your path to paradise, and land you in Hell! It makes research, discussion, homework, study groups, and assignments extra difficult.