@TimB as others said, you have little control in an HA aside from making yourself fit for anything that will come your way. And, given the behavior of this crew as a whole, you might be dealing with scouts who haven't even maintained their boots ... let alone their bodies.
Ideally, right now, your scout (I'm not using "son," because at this point you need to detach yourself from your knowledge of his aspirations, emotions, etc ...) needs to be touching base with the other scouts every week or so. He needs to be the cheerleader, promoter, joke-teller ... whatever suits his personality. Sel