This from today's Times "Rude Pupils driving out teachers says strict head", a former head teacher nicknamed Britain's strictest has stated children's habitual rude and aggressive behaviour was causing teachers to leave the profession in droves. He added we can't have the children running schools, there is a power struggle where if kids think they stand a chance they will push it, take liberties and be extremely rude. This is from Barry Smith who took over a failing school in Norfolk and relaunched it as The Great Yarmouth Charter Academy, although some of his rules such as sick children not being able to leave the room and given buckets in which to vomit sound positively Dickensian. Nevertheless, I think it's fair comment that teachers, particularly at senior level, in the schools that fail to get a handle on disruption and rudeness leave the teachers demoralised and questioning why they ever considered teaching in the first place when so much of their time is given over to what amounts to crowd control. Unfortunately, in the case of boys, I believe, some ,once they reach adolescence and beyond would respond far better to male teachers, but as we know they are so thin on the ground and that's a whole different discussion. I'm imagining this is possibly not the case in the private sector or for that matter the ongoing disruption that is part of the fabric of school life in some establishments
a result of an aggregate of different factors, as mentioned up thread under funding of course but a myriad of social problems.
I think the whole question of insulting people's choices with regard to state and private sectors, this goes both ways. Those I have experienced in real life, not on GN, have on occasions been so casually blase in retrospect almost breathtaking. This was a conversation I had bring to a conclusion abruptly but stuck in my mind from some lunch being thrown by a client a couple of miles from where we lived in West London. Woman to me "so where do you live" me "name of town" her "oh yes I know "the" school there" because I already had the measure of her I knew exactly the one she had in mind a prep school very close to my house. her "I can't remember the name of it, it's on the tip of my tongue" so I went through every school in the town bar that one, her "no! no! no!" to all my suggestions, me "is it a special school?" her completely missing that point "oh yes it's terribly special" and then she remembers it and because she was so boringly predictable in naming the very one I had in mind, I just responded with a flat toned "never heard of it" her "oh but you must have done it's the only school in your town that has anything to offer" me "they all have something to offer perhaps not what you had in mind bye!"
The neighbour who introduced herself to me when we first moved to our house, assuming we, like her were putting our children into said nearby prep school turned out to be a teacher who taught in the state sector. I got invited to a coffee morning at her place and because it was a Macmillan one raising money for cancer I reluctantly went, by that time I'd worked out she wasn't my type. There I met some of her friends, by this time I had my child in the nursery attached to the state infant school we had his name down for. A couple of these women also had their children in that nursery different session to mine but then blithely let me know that they would be withdrawing their children before they went into reception because they were down for a private school, but as a sop no doubt to me they did say "the nursery nevertheless is frightfully good isn't it" No conscience whatsoever about taking the place at a nursery intended for the children going into the school it was attached to, during the course of our conversation they felt the need to point out that the school wouldn't meet their expectations 
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I can't believe I read that!