There are too many people to have everyone serve in the military for three years after graduatiog from high school. How big a military do you want? There are 11 million males age 15-19. Assuming there are about 3 million males reaching 18 each year wth say 2 million being able to serve physically and mentally, how would we be able to absorb and afford so many people in the military.
And would you draft women?