That was a well known problem 15+ years ago. Teacher's inability to deal with and/or dislike of male students was also the cause of the ADD and Autism epidemic of the millennium as well.
The majority of people with either of those diagnosis have nothing of the sort, they were just normal boys who teachers wanted medicated into complacency or became damaged by the label/medication they were forced under until they were that way.
That was a well known problem 15+ years ago. Teacher's inability to deal with and/or dislike of male students was also the cause of the ADD and Autism epidemic of the millennium as well.
The majority of people with either of those diagnosis have nothing of the sort, they were just normal boys who teachers wanted medicated into complacency or became damaged by the label/medication they were forced under until they were that way.