Well – no, not quite old enough, nearly but not quite – often feel as though I am mind you. But yes, your explanation is so logical that I am convinced it is correct. Something learned today!

Out of date expressions such as "young persons" become more interesting when one learns about the society that found them useful. The arrogance and self concern of that "clahss" of the between-the-wars society is wonderfully displayed in the opening sequences of the film Gosford Park, where the maidservant is kept in the pouring rain by Maggie Smith with no recognition of her as a human being (or "person" even).

No, I don't think we have any Col. Blimps of that pattern left here now - not even in Budleigh Salterton, which was reputed to be their "elephant's graveyard". There is still snobbishness, but now it is connected to what you do for a living, and I think it is international.