As of Jan 2009, Family Worship Night™ now is to replace the Congregation Book Study™, and is receiving increasing importance in special needs parts™. This seems to be to address the fact that various ones have been growing up™ without much attention to the youths making the Truth™ their own. Of course, in order for the children to be inculcated correctly™, the parent(s) need to have their hearts™ trained in the Truth™ as well, so that they don't become deviant in the first place, or if they have, so that their hearts™ may be corrected.™
Of course, I assume that the Elders™ and other responsible family heads™ were doing the Family Study™ weekly as it was. If so, an extra evening for personal study™ has two advantages that I can see which bear on this current Topic: an extra evening for Elders™ to engage in Shepherd™-related concerns; and an extra evening for those who require spiritual assistance™, counselling and therapy to get it.