sometimes stopping isnt feasable, for example if you're 2-3 miles away from the nearest campsite and the sun is starting to set. or what if that one kid stops because he gets an asthma attack?
Usually the kids get pushed and they turn out fine. if no one is there to push them, they may never realize that they are able to do something. when they complain and get pushed, but pull through and make it they feel an overwhelming sense of accomplishment.
What IS an issue is medical pre-screening and proper training for staff to recognize serious ailments, and distinguish the difference between exhaustion and a serious problem, and also training for proper first aid beyond what you would get at a cpr class. Like army medic type training.
I think there should be physical requirements for groups, and that kids with simmilar physical abilities should be grouped together. e.g if you can run a 15 min mile, group A, 10min mile, group b, 5min mile, group c, and if you cant make a mile in 20 minuits you cant be admitted.
you also have to understand that in many wildernesses, eating more than "trail food", and even having acsess to roads or an airlift, is a luxury. When i was in outward bound, we travelled 290 miles across the boundry waters in minissota zig-zagging across the border for a month. during most of the trip, we were over a hundred miles away from a road. The park service doesnt like to do airlifts unless it's a life-threatening emergency situation, and they usually charge a fourtune for it anyway because getting there is so difficult. they cant use helicopters, so they have to use this little plane i think they call a pondskipper, and only a small percentage of the lakes are big enough for it to land. we had to carry everything in and out, we had to carry ALL our food from the start. try being very well-fed if you have to carry around all your food.
One of the kids in my group broke his arm - i'm no doctor but it looked really messed up. we coulnt get an airlift, so the counselors fashioned a splint from a set of broken paddles we found, set his arm, gave him emergency morphine, and we stopped for the day. we hiked and conoed around 40 miles, which took us three days carrying the injured kid's stuff, untill we met a counselor who took the kid and canoed another 3 days untill he got to a road where there was an ambulace waiting for him.
this is normal. this is what happens in the wilderness. if you cant deal with it, if you are not physically and mentally capable of enduring it, you have no bussiness being out there and you should have been screened out.
outward bound sends a list of excersizes and tells you what to expect, and how physically fit you should be, and an explination that if you cannot fullfill the physical requirements you should not go, months before the departure of your expedition.