I think you've already decided. Do it.
I honestly think those who clicked up, have no direct or indirect experience of war. If you had the slightest iota of experience you would be writing a comment like this. War could possibly be the most crude type of expression a human being can display. If you wish to experience such experiences, by all means head on out and do it. For those cooped up in school, playing video games, a war zone is not a form of gap ye…
He should really consider going; it is probably a once in a lifetime experience and extremely sobering.