This is the result of a "one size fits all" approach where absolutely anyone can walk in and sign up to an "integrated" course without having shown any aptitude whatsoever and be limited only by their funds available...(or taxpayers funds for the ones who think they are getting "free" flying training); then the same applies to instructor courses, meaning that the only weeding out is done at the flight test - and there are unlimited attempts at that - or finally by a Chief Pilot wading through piles of resumes.