> > most of the ones I know would rather think in terms of
> > bourgeoisie and proletariat
> 
> Yes, "most" of the ones I know as well, at least the ones that
> were young 1968~1975 are likely to at least be familiar to the
> terms ...

Everyone was young in 1968-1975.

Even the old were made young, in some cases for the first time.

 ;-)