There are lots of people who have never had a problem with addiction. And there are many people who have compulsive behaviors. But . . . what parent allows a child to become immersed in poor behaviors at age 6, 7, 8, etc? Whatever happened to personal responsibility? Parents have a responsiblity to help their children develop socially as well as physically and emotionally. Therapists need to deal with the root problem rather than call every inappropriate behavior an "addiction." People use many things to avoid interacting with people face to face.
Which came first: the compulsive behavior, or the lack of ability to interact with people in normal/appropriate ways? Poor social abilities lead to isolation in front of the computer. I think the root of these new "addictions" was already present before these people had their technology devices. Call a spade a spade.