Indeed, it’s almost 100% on the parents and their culture.
And I don’t want MY kids around THEIR kids unless they train them right, and they won’t and can’t.
So then why are you blaming the schools for this poor behavior when you say: We already know that public schools are detrimental to the health, morals, and liberty of humanity,?
How can the schools be expected to do the job of the parents and at the same time provide a quality education?
Please keep in mind I have my students for 90 minutes a day 5 days a week in an average size class of 15 students. Parents have them (not counting sleeping time) 5-6 hours a day 7 days a week.
Who has a better chance and more opportunity to teach them civility and decorum?
I will tell you straight out that having met some (not all) the answer would be me, but that does not abrogate them of the responsibility.