I was involved in a frustrating conversation elsewhere a few weeks ago: all involved, of all backgrounds seemed to think of class purely as an identity.
A friend, a man in his early 40s who works a poorly paid clerical job with minimal prospects of advancement, lives in a damp expensive private let flat, relies on public transport and has no savings or pension, considers himself middle class because he had a middle class upbringing and his folks have bailed him out once or twice when he was on his uppers.
He seemed to think that because he didn't grow up on a council estate or experience extreme poverty as a child, he wasn't allowed to consider himself working class, despite the fact that his material conditions and interests now and for the foreseeable future, are those of the working class.
With what used to be the lower middle classes increasingly finding themselves in less secure, less well paid work and less secure housing, there's huge numbers of people like him who to all intents and purposes are working class, but who don't consider themselves so - because class has been sold them as only an identity.