I think one of the big factors has been that increasingly we are living separate lives even when we say we're living together say as partners or with our families, often in isolation in not just our own mental space but actually increasingly our own physical ones.
It's by no means uncommon to hear of families may text members about either meal times although increasingly that's no longer shared or to have snacks fixed for them ready as they emerge briefly to return in minutes.
When I was growing up the television was seen by some as threat to their way of life, taking away from things people did together such as playing games or just talking to each other with us becoming just passive consumers of that coloured tube in the corner of the room.
People didn't anticipate we'd talk about what we were seeing to each other, on the subway or at school or work so in some way you can look at it as a 'golden era' like that family in the picture, that's how we lived including for some of us the wonders of NTSC colour that was like going to the movies, except it came to you as huddled around it.
Today though we consume our YouTube, NetFlix an co wherever we happen to be and you may be watching that as someone's chatting away or playing a game which is really cool but as people we need some US time as well as ME time to catch up with each other, talk about what we've seen and done, maybe gain some perspective too.
I think it matters for all of us to try to get our modern lives into some kind of balance, sharing time with each other as well as with watching or keeping up with our friends online. Don't you?
*Extra paragraph added 2017