you may take it from me, that however hard you try - or don't try; whatever you do - or don't do; for better, for worse; for richer, for poorer; every way and every day: the parent is always wrong. So it is no good bothering about it. When the little pests grow up they will certainly tell you exactly what you did wrong in their case. But never mind; they will be just as wrong themselves in their turn.