There would be a lot of benefits for the primary school, because the workload of the parents would be taken in the magical world and the children could have excellent social skills. The best thing would be that a primary school could destroy the bias between the muggleborns, half-blood, creature blooded and purebloods at the beginning stage and the children would be taught that everyone was equal. If you wanted to change a child’s perspective about the world and their surroundings, the best option was at the age of six. Lucius knew that all magical children in the magical world were either taught by their own parents like the children from Knockturn or other children from poorer families or were taught home by tutors, which were paid by the wealthy families or some wealthy and poor families sent their children to a primary school, where also many muggleborns were attending.