I'm 22 and have been watching twitch very regularly since I started college in 2013. I think my age group is the main demographic twitch targets, and I can say myself and many of my friends watch for the streamers and community more than the games themselves. Lirik, a streamer I have watched for years, is someone I would watch play literally any game due to how entertaining his personality is.
May be anecdotal, but many of my friends have the same mindset. Besides watching competitive eSports tournaments for specific games, usually someone will have a few streamers they will watch play anything.
You watch Lirik!?!? Come on man watch a R E A L streamer like GiantWaffle... People like you probably only have 908 friends on Facebook, like "wolf packs" and work for networking companies TriHard. Get on my level and call me :^)
May be anecdotal, but many of my friends have the same mindset. Besides watching competitive eSports tournaments for specific games, usually someone will have a few streamers they will watch play anything.