My hot Narnia take is that the Pevensie children, though undeniably Odd and Uncannily Grown on their return to England, do not actually stand out among their cohort of World War 2 children. They’re not the most traumatized kids in their boarding school, they might not even be the most traumatized kids on their street. One of Lucy’s friends came on the Kindertransport and lost her entire family. One of the boys down the street who Edmund used to play with lost his baby sister in the Blitz. The Pevensies, who stayed together, got their father back in some capacity, and maintained a general sense of truth and justice and evil witches being defeated with minimal casualties, were probably considered by their teachers to be jolly well adjusted. Yes, they do have a few strange habits and a rather grownup look in their eyes, but they don’t hide food in their dormitory beds, they don’t compulsively cover the windows or flinch at sirens. Peter occasionally jolts awake calling for his squire but that’s fun, that’s charming, maybe he’ll be a professor of the classics! His dormmate has dreams of bombs falling and there’s less that can be done about that.