>>127017848In a shared universe he should be old enough as to pass for a young adult under the mask.
Otherwise, the older heroes come across as jerks if they see this obvious child just risking his life around and don't take him aside and tell him "Look, kid, you're either going to get yourself killed or you can let us guide you around..."
But that kind of thing leads to Iron Boy so its not narratively good even if it's the sensate thing to do in universe.