They are not bright and eager to learn, or at least many of their peers are not. You can’t get anything done when there is mass disruption all the time yet you are told ‘keep kids in the classroom’ even after a gang bang.
College profs really need to get to the high schools if they think it is so easy. And then try middle school. Most of them wouldn’t last a week.
I'd judge that most of my upper division college students were both "bright" and "eager". They were certainly not disruptive.
The problem was, nobody ever taught them anything.
I don't doubt that many of their peers were otherwise, though.