We advocate that all adult Leaders who supervise Scouts in wilderness settings be trained to as high a level of emergency medical care available in your country. Leaders who supervise Scouts closer to civilisation, within easy reach of quality emergency medical care, should be trained to only a slightly lesser level than those Leaders working in wilderness areas. This would mean being trained as an EMT or certified in some other form of advanced first aid training. Scouts, while they may not need to be trained to as high a level as the adults who supervise them, should, nonetheless, be trained to a high level of competence in back-woods emergency medical care. There is no reason why every Scout in your Group should not be capable of saving a friend's life.
Kids save kids from drowning mishaps every year.
The primary people to turn to in an emergency are the adults - and these are the people who need the training the most, but quality emergency medical care training should be made available to every Scout and Leader in your Group, and all of your members should be expected to take part in first aid training. Your members should be expected to be able to perform to a realistic standard, which will vary, depending on the challenge level of the programmes you provide for your Scouts. This is a Scout on one of our survival training courses who injured himself and had to be take to the local hospital to have his leg sutured. While we would have understood if he had dropped out of the course, based on the severity of his injury, he asked to be returned to the survival exercise area. We allowed this, since he wouldn't be at any increased risk there - and also because he was not very mobile, and would provide the rest of his team with some very realistic training in how to deal with an injured person under survival conditions.