Agreed, and adding -- One can see the notion of epochal/generational change in earlier UK contexts. For instance, the post-WWI era ushered in a time of great s

Agreed, and adding -- One can see the notion of epochal/generational change in earlier UK contexts. For instance, the post-WWI era ushered in a time of great social change and the "Bright Young Things" (https://en.wikipedia.org/wiki/Bright_young_things https://en.wikipedia.org/wiki/Bright_young_things). And of course the "Swinging Sixties" (https://en.wikipedia.org/wiki/Swinging_Sixties https://en.wikipedia.org/wiki/Swinging_Sixties) after the costs of WWII were paid. I don't think this is at all an American phenomenon. Another reference point: kids who always grew up with a smartphone, vs. slightly-older kids who got their first one, say, in college. Totally different thing.