It&#x27;s refreshing to read an article about a scientific study from a university press office that doesn&#x27;t exaggerate or misinterpret its implications. Perhaps it&#x27;s a luxury of prestigious schools.<p>I suppose a reasonable hypothesis to draw from this is that a too structured environment in early childhood is destructive to mental health. But I wonder whether they&#x27;re considering the possibility that being one of the older children in the class carries certain advantages that might affect the development of the child&#x27;s personality.<p>If my memory serves, Malcolm Gladwell explored this topic in the book &quot;Outliers&quot; when discussing differences in birth month frequency between successful Canadian hockey players and the general population, except it focused on differences in physical rather than social development between children in the same classes but different age groups.<p>If something similar were taking place here, delaying kindergarten for the general population wouldn&#x27;t solve much.