I mean, most often I see my friends online, and they are likely equally or more interesting than my neighbors who I did not choose (but you never know, of course). It also takes less time, and the time is more convenient; if the only option to see my friends were a Saturday 6pm party, I would interact with my friends a whole lot less.
Ball games — well, at least they exercise the body. For that, I can go to a park.