Hunter safety perhaps is one good place to learn some ethics and traditions. I'm sure they could do more too in the course. Here in my state I know they discuss hunting ethics in the course. I've taken the hunter safety course a couple times on my end and refresher courses are not that bad of an idea in my opinion. Over the years our hunter safety course has changed for the better than what I remember taking years ago at least here. Hopefully the course will continue getting even better in the future in teaching values and ethics.
In the end I think we all as parents and as mentors are responsible to talk the talk and walk the walk, continually showing and speaking about such things to our children. It's not just a one time event but an ongoing process to help nurture such things and develop those important attributes in our children. In many ways that phrase, "you are what you eat" applies. What kids are fed both in nutrition and in what they are fed in teaching helps mold them. In the end, children will choose their own path but hopefully that path, with some good guidance won't take them on to many detours or get them going in the wrong direction. I'd like to think so anyways .