Virtual communication as good as "real"?

I find this scene an increasingly common sight: a couple around a dinner table in a restaurant seated opposite each other; they hardly talk to one another, rather, their eyes are glued onto their respective phones/tablets. They are physically near to one another, but their minds are linked to others faraway at the other end of the cyber highways emanating from their electronic devices. I suppose this is a picture of modern 'communication' - conversing primarily through the gadgets on our palms rather than through the traditional 4-eyes meeting. "But what's wrong with that?" Some may respond. "This shows we are tapping on technology to communicate in ways and in speeds of interaction not previously possible." Yes, I have personally experienced the wonder of such possibilities: such as skyping with someone faraway - the closest thing to being next to the person. But, my discomfort is not in the prudent use of these communication devices, but the over-reliance on them to the point that one spends a disproportionate amount of time on it - there's no end to Skype, Facebook, SMS, watsapp, email etc - and little time on face-to-face interactions. Worse, I fear that some (including adults) are so honed to these virtual interactions that they have lost the art of "real" interactions. I know I am sounding really old-fashioned when I say this: but I think "real" communication face-to-face is of a very different nature from the virtual one. Just a few weeks ago, a friend shared to me about a hard lesson he learnt: he was maintaining friendship with someone exclusively through exchanging emails with the person. Months later, the correspondence ended in a very big misunderstanding that no further attempts at clarification could salvage the friendship. The person understood his emails in a very different way from what he had intended. There is a place for written correspondence - to deny it is to conclude foolishly that letter-writing in the past did not serve its purpose. But I suppose today, with the speed in which we type messages and obtain responses, we are sometimes lulled into a false sense that these online exchanges are identical to (and perhaps, can replace) face-to-face communications. The beauty of these traditional ways of interaction is that all of the multiple senses that God has given us can be brought into use in the communication process bi-directionally: we look at the body language, we listen to what and how things are said, we feel a nudge on our shoulder or a pat on our back [not to mention the catalytic effect of sipping coffee while enjoying all of the above]. I share these because I am concerned that our children will slip into this predominant virtual mode of communication and slowly lose the ability (through lack of practice) to enjoy interaction in actual social settings. I am beginning to see traces of such awkwardness when some youngsters gather. The ubiquity of smartphones and tablets do not help this cause. I suppose one of the best 'practice ground' for social interaction is the home. In the home, they start with familiar folks and they get to interact with people across a range of age groups - a microcosm of the wider social community. The key, I guess, is to create plenty of opportunities to communicate with one another in the family - and enjoying the process while we are at it. And one more thing: I ban the use of phones around the meal table. Too extreme?