How does Britishness compare with British youth

In the film "Fish Tank" Britishness is depicted as being a "council house" society wherein everyone lives very close together, however they do not interact with each other and keep to themselves. Mia is seen as being a stereotype of "Chav" which is a group of people who are against people of an older generation and can be quite violent, this is shown in a earlier seen where Mia head butts another girl just because they got in a fight with each other. This is different from the other film we watched which was "An Education" where teenagers are shown as being obediant to their parents and not being very rebellious, they are essentially smaller younger adults.  These contrast together very well as one shows complete obediance while the other shows rebellion and disregard for authority and the older generation. This could be down to different factors, one being that they could be from different time periods in history, however it could simply be the different areas that they are living in as one lives in a town and goes to school/college where the other one lives in a flat on the outskirts and isnt seen going to school throughout the film.