@user1497997754
I take on board everyone's take on this subject....it's just that everyone I know seems to be engrossed in so many box sets these days it's kind if taken over from for example lets just go out for a walk or let's go to the park...lets walk the dog....lets go see some family...lets cook something together...lets read a book....lets do something in the garden...the list is endless....especially during the summer lighter evening months
@user, what makes you think all the people who love to watch 'box sets' on dates don't do all of the above AS WELL? Are you seriously suggesting that people who like to trawl through box sets don't ever do anything else on their dates? 
Me and DH sit through tons of episodes of crime drama, breaking bad, game of thrones, old 80's sit coms (and 70's,) and new netflix stuff. But we still go out for walks, tend to our garden, (and sit in it,) go for walks by the river, go to the pub occasionally, and go on day trips (as well as our annual holiday.)
Just because someone likes to watch fab telly programmes, that doesn't mean they do fuck all else!!!
Thing is, why do you even care? Why does it matter to you? Are you secretly jealous? That is usually the case when people criticize peoples life choices. If you are content and happy with YOUR lot, why do you feel the need to berate others? 