Absolutely. Look at how thrilled Lawrie in particular is at the idea of dressing up as a punk and going slumming. And the whole Changear thing is to some extent about a bunch of (largely) well-bred boarding-school girls absconding from the 'Mummy's friends to tea dismals' and dressing in a way that's less specific to their own class.

And is the first time we hear Nicola (or is it Miranda?) using the word 'gear' when she's speaking to the pothead 'townie' in Changear - making an effort to use a different kind of idiolect?