Joseph wrote: “how can a father not have chinuch questions or know all the answers as to what’s best in such an important and complicated area?”
It is true that every father has chinuch questions and no one can know all the answers as to what’s best in such an important and complicated area. The problem is that this usually applies to the Rav too, only much more so because his knowledge of the children in question is far more limited. These are problems that require nevuah to know what to do and b’avoisainu harabim we do not have nevuah today.