During the months leading up to the training camp, you will need to provide considerable classroom training to the participants. They need to meet frequently enough with you and your instructor team that they gain confidence in everyone's abilities and competence to provide this training to their children. If a parent's concerns cannot be adequately answered, that particular Scout should probably not take part in the course. The parents should also be afforded the opportunity to participate in the course itself, either as trainees or as observers. You may want to consult a developmental psychologist who specialises in adolescence in order to design stressor scenarios.
Mind games are especially inappropriate and are to be avoided.
Stressors should be realistic, though still essentially mild, in light of your survival exercise scenario. During the training camp, the adult Leaders will need to keep a close eye on all of the Scouts for signs of excessive frustration or indications of higher stress levels than those intended. Obviously, this is not a complete guide to presenting the various types of survival training to your Scouts, nor is it intended to be. This discussion is more to provide you with a hint of just how complex survival training is on an emotional level, especially when you arrive at a point where you should train your older Scouts to a fairly high level of survival competence, in case they become separated from the group on one of your wilderness expeditions. That's a decision you will have to make for yourself.