It's not the official reason given, of course. But is it not effective? As a GEO3/4 you are very likely to find the outside world much more attractive than your current working conditions. Unfortunately, it does not help to get rid of the dead weight that exists in a substantial portion of our GEO5 headcount, because..

they won't even want to go. Attach outside not as good, unlike enjoying life in school as a piece of dead weight, being able to leave immediately after the last lesson and giving zero hoots about everything else.