Plausible, but my spot testing by querying people in the office showed that pretty much everyone in their 50s have heard of the Kardashians, and most of them actually know more about their lives than I do due to the fact that they watch the evening news (in which E! Entertainment) immediately follows to give you celebrity gossip.

I'd posit that generations can't have their own unique 'pop culture'. If it's only popular to people born within 10 years of you, then it's not popular. By my measure a lot of 'pop artists' aren't really popular because even appealing to 100% of tweens in the USA, really means you've captured 3% of the total general population.