Then watch at that company as the pilot pool becomes more and more lower time and less experienced by the year..
They think that by holding guys to a contract they are solving retention issues...when in fact there are quite a few ways out of a training bond and most have figured out how to do it.
Training bonds don't keep people around, they still jump when the right job comes up.
It's a little bit like the military..people leave early, may not be as easy as quitting but there's always a way out.