He's old enough to enlist here as well, but the ADF rarely takes anyone that age anymore and frankly having spent some of my career dealing with junior recruits, I'm glad they don't (although I wasn't quite 16 when I joined the RAN, so I'm being a bit of a hypocrite). If he wants to serve when he's older, that'd be great - but I doubt he's ready yet.
You agree then that the Regimental Sergeant Major would, ... give him a real bucking up and make a real man of him.