We all have parents. We all remember what it was like to be young and feel that you know everything. Even when children are small, they get to places we thought were safe from sticky hands. They somehow get that clump of dirt into their mouths before we can get there to take it away. The signs were clear.
Teachers have so many students to worry about.
The average student to teacher ratio in the U.S. public school system is absurd. The ratio for administration is even worse. The average high school has one principal and probably two assistant principals and two counselors. Teachers cannot reasonably focus on just one student, no matter what the problem may be. Being a teacher is a difficult and stressful job.