In the US, working class tends to mean people in food service, retail sales, low-skill manual labor, people relying on gig work, and some very low-level white-collar workers like secretaries. Upper class are basically the very few people for whom work is optional. F500 CEOs, SVPs, billionaire investors, and so on. Their existing wealth grows at a rate that can sustain their and their family's standard of living indefinitely.

The rest is middle class, a very wide range from schoolteachers, to skilled tradesmen, to engineers, to university professors, to small business owners, to doctors and so on.

My point is that people are nit-picking when they say things like "Oh, but doctors are upper middle class and teachers are lower middle class and engineers are lower upper middle class and on and on and on. Distinction without a meaningful difference.

I think traditional concepts of social class count for a lot less in the UK of 2023 than they did in the UK of 1973. But wealth counts for just as much, even more.

Were Rishi Sunak's parents "upper class"? And yet, he'd surely be a far more valuable social connection to have than Baron Forgettable who happens to be the King's fifth cousin. And I think that will remain true even when his prime ministership is over.