I think I'm tough enough but I know I wouldn't do well. Taking orders is not my strong suit especially if I don't understand WHY. Now I know that chain of command rules and folks don't have time sometimes to be questioned or challenged. So in that way I'm too soft.
I'm thinking about creative people, imaginative people, sensitive people. Maybe they are not meant to witness death or seeing their friends blown up. Maybe they simply don't have the "right stuff" to be a good soldier emotionally. They love their country and are very patriotic but they just aren't able to do the tough stuff required of a solider. What do you think? Are some of the homeless soldiers there because they never should have been in the military in the first place? Sad.