Many comments, at least so far, seem to fall into the rut of "vocation as religious life".  

We all have a vocation, and the reason many young fall away from the heroic practice of their faith is that they haven't come to understand (perhaps by our own lackluster example,  bad formation, or 'rutted' mental categories) that God DOES have a great hope for each of them. He has an idea in mind of how each person can spend their entire life in great service to Him. 

We need a better understanding of the lay vocation.  It needs to be as intense and sacrificial, and it's as important as a more traditional "religious" vocation.

VII documents back me up.