Okay, let me ask you this, what wasn't clear in that original response? The comment wasn't snide. Because clearly, "some" people did not understand something that I thought was very clear. I'll put it this way.. We do not teach our children that screwing around behind someone's back is wrong. Simply because having a discussion about the birds and the bees is hard enough for most parents. Going further and trying to define infidelity and explain why it is wrong and somehow impose the belief about infidelity on small and impressionable children, is nearly impossible without exposing them to things that they are too young to understand, for one and should not be exposed to. To wit, when we teach our children about why lying is bad, for example, the goal is not to teach them about why infidelity is wrong. So the question, in that regard, was not a good question. Because we don't teach our children about "infidelity". Instead, we teach our children about not lying, about not cheating because we don't want our children to grow up to be little narcissistic sociopaths who lie, deceive and cheat. We try and impart some good behaviour and hope like hell it sticks and they aren't lying about stuff and aren't cheating their way through school or something. The question itself, as it was posed, has no correct answer. It is a yes and no response. Because I don't know about you, but I don't know anyone who teaches their toddler that "infidelity" is wrong in the context of this thread. Because lessons about lying, cheating and deception, usually starts right from when they start to understand things and when they do try to lie or cheat or be deceptive.. It's when as parents, we have that little chat about why lying, for example, is wrong and explaining why their behaviour or actions involved lying and why it was wrong. We teach our kids these lessons from a very early age. So in that regard, it isn't about infidelity. It is about teaching our children about honesty.