I would have just let him get killed personally, play stupid games get stupid prizes...
Seriously for an adventurer to not listen to orders is a pretty big dealio there, he really should have been reprimanded way more, him crying when anyone else would have died/gravely wounded saving his ass would not undo what happaned.
The kid is the son of a Baron, with at least the
prospect of staying a noble if he Achieves something.
The kid is your usual teenager. They can and will pull Stupid Shit. In this case getting an attack of Heroics.
And no-one said there won't be repercussions for the kid... Starting with the other adventurers willing to train him showing
exactly why you kisten to orders, and learn to not bite off anything you can't chew...
Up until now they have just been supportive in training a potential new adventurer in the Basics. They haven't gone full Drill Sargeant on him... yet....