That is the second problem with a volunteer military. The first and main problem is it makes it easy to enter into un-needed conflicts and the casualties are easy to hide. With a drafted military, the family is very aware that Johnny is in the military and will question the leaders as to why is the military being sent to fight and die. Remember Vietnam, we had a drafted military and look at the ruckus raised.
Do not get me wrong, I believe in a very strong military. I believe that sometimes it is a national imperative to commit the military and to make some place else a glass parking lot. But a Professional Military and a Democrocy do not go together; the rich escape service and the poor die.