Screen time. The more we spend looking at screens the less we care about "real life". In the past the unfortunate individuals were hardcore gammers. Now most of the people are hardcore mobile users(be it social media, news or whatever). At least the poor gammers are not looked upon like some kind of different creatures.
I'm really not sure of this. I know plenty of very sexually active people who are much more active on social media and the like than I'd say is average. If anything, the more lonely/single people I know are the ones who spend less time at their computer or on their phones.
