Comment by porridgeraisin

Yep, and there is (rightfully) general distrust in giving teachers that much authority over students. Parents already have that authority, which is why a family environment conducive towards education is the most direct way to improve overall student outcomes. Trying to fix it in the school is bordering on pointless. In my country, boarding schools / boarding at another ...quieter... family member's house and attending a school near there was the most common solution among poorer people. Example: more-or-less sane mother sends off kid to uncles house during the school year to go to school and escape drunkard father. The kid visits on some weekends and most holidays.

Hard guidance is needed for kids. Hard guidance requires authority. So either you give teachers that authority which is very hard especially in diverse settings, or you make the family environment give better implicit and explicit guidance.

Now, the government will always attempt to solve it using the tools they have, which is the school, but it is destined to have vanishingly little success if at all.