A simple point. Boys that go off, have an easier time getting things back together. So it does not help here. Also, going off has a higher juvenile death rate. So there is a redundancy.
But this is all a futile exercise. Until someone takes an actual tally, this is all heresy. I maintain that due to the rigors of getting into a seminary, there is only one girl interested in a learning boy for every dozen such boys. The only solution would be for yeshiva guys to start marrying pre-seminary girls. It would also lead to better marriages.