LOL!
We never did the baby talk or simplistic answers either. By 2 DS would get very upset if his questions weren't answered in a meaningful way. Of course, my answer if often started with "I'm not completely sure, but I think... then look into it more when we can.
When DS was 4-5 years old, he got a major attitude about adults and wouldn't talk to alot of them since they lied and made up stuff instead of saying they didn't know. A sideline to this is that they wanted him to answer their questions but if he gave silly answers they got mad. He was onto the double standard already.
Other than making sure his teachers, coaches and such know to say I don't kow or really answer his questions, we really don't worry about it too much anymore.
