Public schools lower standards, refuse to maintain discipline, and exclude parental involvement. The results are predictable.
My experience with public schools — and it is considerable — is that they have little control over students whose parents don’t care.
And they are many.
They not only encourage, but beg, for parental involvement, but parents have better things to do than rear their own kids.
And, as you said, the results are predictable.
Refuse to discipline, no-legal suits, parent attitudes, removal of the authority of teachers, parents letting their children know that no one but they can discipline them, and again numerous law suits that have removed any idea of in-loco-parentis (not really refusal, but dictates from the federal level). By the way we still paddle in my school district.
Excludes parental involvement, no-parents are really involved until the child is about 11, but once the students move into middle school, or high, they disappear. This is despite numerous, and repeated efforts to get them involved.
I worked in the school system for 35 years, and during the first 12, you did not have “expulsions”. But once the generation came to school that watched TV programs that denigrated education, and repeatedly depicted disruptive children as “cool”, things changed. Now there is not a school board meeting where two or three are being expelled for drug possession, attacks on teachers or staff, repeated disruption, and out right crimes.
Society has changed, and so a school is only as good as those who attend it. that's why I like church education (even they have problems), or private schools, that can expel and discipline.