Even so, I find "forcing" a kid to speak a language via any sort of artificial "rules" (i.e. one language with one parent, etc) is counter-productive, and can h

Even so, I find "forcing" a kid to speak a language via any sort of artificial "rules" (i.e. one language with one parent, etc) is counter-productive, and can have potentially negative consequences if the kid learns to dislike a language. My rule of thumb is we never force our kids to speak one language or another, we just try to give them opportunities and motivations to do so. Going to a different country happens to be a particularly effective one, although obviously not feasible for everyone. I am also ok with the possibility that they will not speak my native language (English) very well. I think if as a parent you are not okay with that possibility, you will end up putting undue burden on the kids and probably make things worse in the end. Just my two cents.