One can teach that to their kids easily just by applying proper discipline and understanding in using it.
However, why do your kids have to learn bitcoin this early?
Bitcoin is money and money does not have to concern with kids that early in their lives. Kids tend to have fun, play, study in school. Not to earn bitcoins or something.
If this is the time to really teach them how to use bitcoin, make sure that they understand what money is all about and have to be responsible enough for it.