The entire resistance in The Matrix is made up of brainwashed child soldiers.
Think about it -- when Neo is recovering from getting his brain unplugged from the robots' Dream Machine, Morpheus explains to him that he and his fellow rebels "never free a mind once it's reached a certain age. It's dangerous. The mind has trouble letting go." Zion evidently doesn't subscribe to the teachings of En Vogue.
Basically, Morpheus is saying that adults tend to have trouble letting go of the Matrix (this becomes a major plot point when a member of their team betrays them for the opportunity to get plugged back in). So they recruit kids, because kids are more impressionable, more willing to take up an idealistic cause, and more pliable -- they can be handed weapons and told to kill something without asking too many questions. They are then tossed into a world of violence and strife and told that their lives can have only one path (death to all robots). Which is slavery. Which is the thing Morpheus is supposed to be fighting against.
"Your name is Router. What's your name?"
If what Morpheus tells Neo is true, he had to have built his entire army out of juveniles, which is an implication that the movie never directly addresses. The closest we get is Mouse, who looks like he's about 14 and is horribly shot to death about 80 minutes into the movie.
Definitely not the first time he's leaked bodily fluids on that chair.