Yes, the horrors. What is the major difference between the military having this information versus secondary educational institutions or prospective employers having this information?
The difference is if secondary educational institutions or employrers have it, more than likely it means the student approached them and gave them approval to receive such information, not the other way around.
I have recruited for an employer at secondary schools and was provided lists of the students by the school.
Why are you worried about the union military?
That's an absolutely false premise. The schools give potential colleges and employers lists of the students - exactly the same as the military is asking for.