(1) When I was growing up, nobody had any online presence. I remember life without the internet.
(2) The fact that it is not new does not mean it has not changed in magnitude and addictiveness.
(3) The fact that it is not new does not mean that it is not a problem. It is a growing problem. Especially because societies these days do nothing about their problems except through more technology at them, which rarely solves the underlying issue.