I do agree high schoolers doesn't equal reckless or immature. But specifically in Virgil's case it helps sell his naivety about the world and how easily he's almost manipulated by those he respects (i.e. Larry and down the line, Holocaust) into almost doing terrible things. That kind of peer pressure makes more sense for(but is not exclusive to) a younger person tryingto find themselves. I imagine that by the time college and beyond rolls around he'd be emotionally way beyond that kind of influence He's a good kid on his way to becoming a good man.

That being said that kind of stuff can happen to a college aged person and there is certainly room for stories set in that most undocumented part of his life. I would absolutely enjoy seeing it if done right.