While I'd love to use the internet less, it has become clear to me, over the years, that it's an essential tool in pursuing relationship with people in their twenties. For better or worse, a lot of the social experience has been outsourced to the virtual networks: from organizing parties to sharing ideas to a friend to having fun together (nowadays done with online games), we seem to be less and less able to verbally formalize the things our ancestors were naturally good at (you'd call this "social intelligence").
It's not even that it's relevant to use it, it's just that people forget about you if you don't. Loneliness is a real huge problem among the youth -- without the internet it'd be unbearable.