Ender's Game, substantive post

The one thing I noticed while reading Ender's Game is the thin line between the adults and the children in the book. Ender and the others at Battle School are supposedly these brilliant children who, we learn at the end, are the only way that the human race can win against the buggers. Yet the author still gives them very human and very childlike emotions throughout the book. The love and compassion that Ender feels for Valentine has a very childish spin to it, it is very much a younger brothers love for an older sister. Ender feels confused about what he is doing and unsure about himself, who he is, and who is becoming which are all very angsty, teenager appropriate emotions and thoughts. He wants to be rid of this "duty" to eliminate the buggers and doesn't seem to want to except the adult responsibility for what he is doing.