TGI, I understood Leyzer bringing distinction between children asking questions and children reading school-prepared Divrei Torah. While the latter approach has a lot of value, does it prepare them to listen to their parents’ Torah or to dominate conversation with ideas brought from school? For some reason, Torah wants us to get together as a family unit. Maybe parents whose children come to the seder with answers instead of questions have an extra challenge – get kids raise from reading those stories to start asking questions.
Is this the 6th son? We have 4 that eiher ask questions or stay silent. None of them have a hutzpah to lecture parents. Lubavichers add the 5th – who did not come. Modern schools/yeshivot (to separate from old yeshivot) added the 6th – the one how has answers and no questions.