I've recently finished two novels where children figure prominently:
The mixed childhood of Netochka Nezvanova is described in a way sympathetic to the fascinating orphan girl, who faces life almost alone. Sadly, this incomplete novel leaves her as a teenager.
Nellie, in 'The Insulted and Injured', is a fragile and pathetic girl, who dies soon after her destitute, consumptive mother as the novel ends. In death, the epileptic Nellie makes a monumental, if silent, statement about her rich father - a prince she never knew.
In respect to 'The Idiot', Chapter 6 is inspiring.Their fathers and relations were very angry with me, because the children could do nothing without me at last, and used to throng after me at all times. The schoolmaster was my greatest enemy in the end! I had many enemies, and all because of the children. Even Schneider reproached me. What were they afraid of? One can tell a child everything, anything. I have often been struck by the fact that parents know their children so little. They should not conceal so much from them. How well even little children understand that their parents conceal things from them, because they consider them too young to understand! Children are capable of giving advice in the most important matters. How can one deceive these dear little birds, when they look at one so sweetly and confidingly? I call them birds because there is nothing in the world better than birds!
"However, most of the people were angry with me about one and the same thing; but Thibaut simply was jealous of me. At first he had wagged his head and wondered how it was that the children understood what I told them so well, and could not learn from him; and he laughed like anything when I replied that neither he nor I could teach them very much, but that they might teach us a good deal.
And later in the Chapter,
On one of the first days of my stay in Switzerland, I was strolling about alone and miserable, when I came upon the children rushing noisily out of school, with their slates and bags, and books, their games, their laughter and shouts--and my soul went out to them. I stopped and laughed happily as I watched their little feet moving so quickly. Girls and boys, laughing and crying; for as they went home many of them found time to fight and make peace, to weep and play. I forgot my troubles in looking at them. And then, all those three years, I tried to understand why men should be for ever tormenting themselves. I lived the life of a child there, and thought I should never leave the little village...