Sorry to stir shit here but upbringing can influence it IMO. Although not in the ways which we sometimes expect. James didnt say that everyone who lives near or on a council estate is a chav. I know peoplpe who live on council estates and they are really nice people, some of the council estates around here are fairly rough for what I'm used to (5 bedroom bungalow on the hillside of a small valley) . Yes my parents have always had money, and I am a nice guy, Monkey, you said how you have had family problems and money problems, but you have been brought up to be a nice guy too, thats because youre parents have probably looked after you quite well, when the childs parents have no respect of authority or the country then their children are going to be brought up in the same way, but one of my best mates brother has turned into a total chav now, he starts fights and mouths people off, because he's just like that, he has his dads short temper and it shows very strongly, he idolises his dad, and his dads youth, and when his dad was a child he was a scouse chav and had no respect for anyone because of his upbringing, he has now put that all behind him and he is a quite nice guy, but because this kid wants to be just like his dad was, he has turned into a chav.
I dunno where that went, if it made sense or what im trying to say, but basically, upbringing has a lot, but so does the childs attitude, and friends.