You probably don't intend to sound as rude as you do, but to suggest that I don't read or exercise because I think the Internet is a massive boon for social lives is pretty dickish.

I boulder, run, play tennis. I read about thirty books a year. I have lots of hobbies. But the Internet has made them better. I write novels. The people who help me with beta reading are online, because no one IRL is interested in what I write.

Again, expanding one's social circle.