If we are talking about kids, then you really need to see what happens in public schools these days. Being told either you or your country is evil incarnate several times a day for 13 years has an effect. My child has horror stories from his time in a public school in CA. However, it very much depends on where you are and which school we are talking about.

PS In the future, those same teachers will need their former students to vote for extra taxes to fund their (the teacher's) retirement. In the words of the janitor from "The Breakfast Club", "I wouldn't count on it".