hmmm.... I seem to be drawn to your threads....
I just replied to your 'cover-up' thread, and thought about my position as a mother and Tarot.
I have three childern just like satinangel (HI SA!)
Boys 14 & 16 and a girl soon to be 10. The 14 year old has an egyptian deck. His interest in tarot does not suprise me one bit. He's an undeveloped psychic and dreams about the far past. My little girl is very interested and looks through my decks all the time. Until she is more responsible with her belongings, she will have to look at mine. Yet she is the one that I think will be more of a reader than her brother.
As far as teaching them, I have started with the metaphysical basics, such as elements and thier associations; the different ways that psychic abilities show themselves. Other than that, I go with what ever direction that they have an interest in at that moment.