(I have name changed for this, because I'm including quite a lot of detail that might 'out' me otherwise...)
I find it interesting too, FunBag. I was brought up in a sort of 'bohemian middle class' family in an affluent part of London, but now as an adult live in a back-to-back terraced house in Yorkshire. I am a single parent with two children by two different fathers, and a well-qualified professional. I have much more education than the national average, and less money. But I couldn't be called 'nouveau pauvre' (a splendid phrase!) because I've lived like this for many years... I shop at Asda and Sainsburys for food, and Primark and M&S for clothes. Generally, working class friends think I'm posh, and the nervous middle classes think I'm a bit of a mess!
My two boys, as far as I can see, belong to different classes - or at least identify with different classes. It's weird to watch.
My eldest identifies with the working class boys and men who live around us, and with a more disengaged 'underclass'. His friends and their dads work in shops and pubs and garages, or join the army, or sign on. He got 5 GCSEs - which was an underachievement for him but more than they have. He binge drinks and smokes. His favourite foods are take-away kebabs, Chinese ribs, McD's, toad in the hole and Sunday Roast. In his social group, disagreements are often dealt with violently. He has had several brushes with the police. He expresses Sun newspaper views on most subjects. Until a couple of months ago, he had no aspirations, other than to 'get rich' in some ill-defined way that doesn't involve any actual work. He's back in college now, so maybe that will change - he has started to talk about becoming a journalist. In his free time he hangs out with his mates (sometimes on street corners, but more often at a local WMC now that he gets served) or plays on his playstation or watches Hollywood movies. He wears trackies and Adidas brand clothes and trainers, and would not be seen dead in a charity shop.
My other son is middle class. He is doing well at school, and though he doesn't like the teaching, he still likes learning. He is a bit of a geek. He goes to science club and is learning piano and guitar, and watches 'art house' films. In his free time, he will draw, or build something, or research things on the internet, or go on expeditions with one or two friends. He is vegetarian and health conscious. His favourite foods are salads, especially ones made with avocado, and any veg cooked with garlic. He rarely fights, and never starts anything physical: words are his weapon of choice. He dresses most often in ironed shirts and v-neck jumpers, and slicks his hair back like a 50s film hero. He plans to be a film director or an architect or scientist.
Of course they are young, and their habits and aspirations might change - they almost certainly will. But it is fascinating to me to watch them make such different choices, and signal their identities to the world with the food they eat, the clothes they wear, their hobbies and their attitudes to school...
What I can't quite work out is how specific choices and behaviour become identified with different classes... It isn't to do with money, because there is no doubt that DS1's chosen lifestyle costs much more to maintain than DS2's...