It’s somewhat based in reality, isn’t it? I’m still gaming in my late 30s and most people I get to play with are on average 10-15 years younger than me. People leave the hobby with time, en masse, and almost no one my age seems to be joining. There are some games that let you ignore that more (single player, matchmaking. Although even in single player, what’s the point of gaming, if you don’t get to discuss it with most of your friends), but some are really difficult to continue playing (coop :().
like others have pointed out, this makes automatic detection easier not harder if true. Just cut the segments that move around, audio analysis and even transcripts (they don’t have to be good! just good enough to identify missing segment!) are pretty mature.