And what are your qualifications?I'd suggest you go volunteer in a public school for a year. Not being snarky, mind you. Merely stating that there are more elements at play here than an individual's responsibility. ETA: It is a different environment than the park, the theater, or any other public space. Most teachers will tell you that, at some point of every day, controlled chaos is the best they can hope for.
I went to college for my teaching certificate, did my student teaching, and substitute taught for 2 years (inner city and rural) before I decided I wasn't going to get a job as a teacher and went into industry. I know what a classroom is like. Subsitute teaching has all the bad aspects of teaching with none of the rewards.
But I don't actually see what that has to do with the discussion other than to marginalize my participation.