why are personal trainers so bad at what they do? First all of the trainers at my gym are either frail or fat (except for a handful) with that being said, it shows they can even train themselves properly.

Their ability to teach people proper form is ridiculous! As I was training yesterday doing squats. There was a man in his 40's being trained by a personal trainer who was in his 20's. They were on the squat rack. The guy was going down less then half way and his knees were going way over his toes and I heard the man ask "am I doing this right?" and the trainer replied with "yes, perfect." I looked at the trainer and shook my head, it just made me irate that someone could be a personal trainer and not know what the fuck they are doing!