So we are sending to Mordor those who act out of a genuine sense of love, devotion and duty simply because, on occasion, they can get it wrong, even though nobody (no, not even those who are parents) is able to exercise perfect judgment and get things right 100% of the time?
On my reading of
LotR, that seems rather back to front to me ...
Perhaps we should just send all teenagers to Mordor for a limited period so that their parents may take a well-earned break. As
TGWBS pointed out, Brat Camp is already there to take care of the most troublesome of them. And the variety of teachers, school subjects, tests and exams that have been sent there will keep the remainder occupied.