19 year olds are much more malleable. They can be fanatic, and follow orders easily. They aren't educated. They have a limited grasp of morality, and can't oversee the consequences of their actions. They have no other obligation in life than to this holy task.
Somewhat ironic to claim a "limited grasp of morality" and a lack of education when the instutions doing said education have been preaching moral relativism for a while now.
If you'd said cultural relativism, yes, some institutions (in particular sociology and the like) did preach that, but moral relativism? Those institutions certainly preached morality.
However, engineering schools have not been affected, AFAIK.
