I gew up in a blue collar town near Lowell, Massachusetts where by the seventh grade some new teachers and teachers near retirement had trouble controlling the students.
Also I remember a seventh grade study hall where a student "celebrated "being eaten" by a relative in a loud conversation with the female teacher. A more seasoned teacher had to come in when she wsl by the classroom.
The seasoned teachers in my town were saints.
So we are far apart, @Epigonos