[amradio1989]

Its mostly social anxiety. Which makes sense. Children have progressively been raised more and more on screens and devices. Teenagers rely more and more on technology to solve problems. Adults do too. No one has to interact anymore, which means many people no longer know how. Cue the anxiety.

In previous generations, you had to interact with others to get anything done at all. Kids had to play with kids, parents had to talk to the postman, the milkman, the newspaper boy, the telephone operator, the neighbors, you name it. It was a necessity for a functional life, so people did it.