I've spent some time with extended family (I'm from a fairly ordinary background - upper working / lower middle). Anyway, much of the extended family is quite posh (doctors, lawyers, etc), and I noticed a few times that there was what I thought what I thought a bit of "signalling going on".
I was chatting to one chap, (doctor), who told me about his sister-in-law, whom I've never met, and he managed to slip in that his sister was a solicitor, and one of their daughters was studying medicine at Oxford and the other daughter was studying Law in London.
My next friend sidles up, and tells me about his promotion, and his new house, and literally manages to squeeze in (indirectly) the size, by telling me what the area of the ceiling he has to decorate!
It just seems to me with my friends from a similar background, we talk less about our work (and whatever successes we had) and more about general life.
AIBU to think it's a middle class thing to signal and brag like this? I don't think it's malicious and I know I can be a bit sensitive, coming from a less posh background.