Earlier quoted context omitted.
That said, I would say my nephew is significantly more social than most people in my generation were, because he is able to get in 5 hour calls with his friends every night, whereas that might happen only once every few weeks in my case, at best. He's learning and socializing way more than even my most social peers were able to growing up.
But that’s unfortunately a rather useless form of socialization, as most of his life interactions will be face to face. Job, romantic life, etc.
Going back to when I was a high schooler, I was closeted and in boarding school, which admittedly had a significant built-in social life (that was of little interest to me), but I was also able to have a long distance close friendship for years thanks to Google Talk. I dare say some of my most important and formative social moments in my high school years were over Google Talk with my small group of friends. Sure we had antics in the dorm at my boarding school etc., but these were minor and fleeting interactions versus the deep and meaningful relationships I had over Google Talk, and anyone I actually cared about at boarding school also interacted with me that way, a good bit.