.So, according to that estimation, 60% dropped out before starting flying training, and at the end only 10% finished the course.That's not great odds.
I don't think that is anything unusual, however in the past the lack of opportunity has compensated for the lack of graduates. Add to that to people floating around who are grossly overqualified leaving other professions to go flying. The difference now is people are not leaving other jobs due to pay and conditions, this is then compounded by the lack of people learning to fly with the increase in job opportunities. People getting into a regional now would be laughed at 20 years ago if they turned up with the same qualifications.