I teach them correct PRINCIPLES, and they govern themselves.
Obviously, kids at various ages are more or less able to "govern themselves" properly, but the point is that he said "principles" - NOT "details" or "facts".
When I talk with my kids, I let them know that I am willing to accept as possible LOTS of different details or facts or perspectives - as long as they don't violate basic principles in which I believe passionately. I have found no real issues where I have a major problem with the PRINCIPLES that I believe form the actual core of "Mormonism" / "The Restored Gospel". It's the extrapolated details and opinions and perspectives with which I sometimes disagree.
That's fine, but I make sure I try to embed the idea of distinguishing between principles and details with my kids - since it is the confusing of the two that I believe causes so much heartache and so many problems for people and for the Church.