 Why is Lane so child-like?
Raging , Trooper Lane hovered three thousand feet above Tammany Square. The cool cybrain surgically implanted in him was working on the problem. Just a little time off, so I shouldn't blow my top. The humming paragrav-paks embedded beneath his shoulder blades held him motionless above Newyork's three administrative towers. They keep Troopers in the Armory and teach them how to fight. They don't teach them about their own city, that they'll be fighting for. From seven years old up, Troopers have too much to learn about fighting. Two black paragrav-boats whirred along the translucent underside of Newyork's anti-missile force-shield, the Shell. Lane somersaulted. Cybrain had taken charge of his motor nerves. Lane's own mind was just along for the ride. A predatory excitement rippled through him as he sailed down through the air. A little red-white-and-green flag fluttered on a staff below the window. Lane dropped lightly to the floor, inside the room, in battle-crouch. "Lashing police with his vibray," said the announcer, "Lane broke through the cordon surrounding Manhattan Armory. Tammany Hall has warned that this man is extremely dangerous. Citizens are cautioned to keep clear of him. Lane is an insane killer. A built-in electronic brain controls his reflexes—" "At ease with that jazz," said Lane, and a sheathed finger snapped out. Lane's mailed hand snapped open a pouch at his belt. The force-bomb "exploded"—swelled or inflated, really, but with the speed of a blast. It shaded the view from his window and re-entered the tower wall just below. "Trooper Lane, of the Newyork Special Troops, is all." Orange or green is the action. Built, Lane saw. I am a diplomat of the Grassroots Republic of Mars. This is an embassy, if you know what that means." If you've never heard of diplomatic immunity, you'll suffer for your ignorance." "No. "Force-screen. Nothing gets past, except maybe a full-size blaster-beam. "I told you, I'm an ambassador. From Mars. Sure, I've heard of it—you gotta go by spaceship. Look, Lane, holding me is no good. He takes orders from Newyork." Gerri Kin said, "That's what the force-domes did. But also the road to the return to city-states. Anarchy."
 Lane was never given a proper education, only fighting instruction.
 All men are child-like.  Lane was never given a proper education, only fighting instruction.  Lane is controlled by the Cybrain. His own brain never had the chance to develop properly.  Lane has been a Trooper since he was seven years old.