... so many people are wrapped up in the Internet and electronics that they simply don't know how to just sit and converse.
They are sitting conversing with the dozens or hundreds of friends on the Internet that in the old days they would never have any chance of meeting at the boring old pub. Or better yet, telling all their friends: "This place is jumping! Come join me here!" Also known as extra business.
"Look at the kids engrossed in their phones, not talking to each other" is old timer speak for "Waaa! The kids don't want to talk to me! I'm so interesting! Why won't anyone talk to me?" Maybe it's because old timers are utterly boring?