Maybe not all the boys need tutors, but the Rebbeim don’t want those that do to feel bad.
Or maybe, the fathers are really meant to learn with their sons, but they are not all capable of doing so.
Gamanit – good points, but I’m not sure I agree with your first point. I don’t think that’s necessarily the point of homework. I think the point is that the kids need to review outside of the classroom.
Your point about one-on-one learning is a good one, and I imagine that might be what’s going on here. I was assuming that we were talking about an older kid.