It's true that for the great majority of people, going out and having a ton of social relationships correlates with increased happiness. For me, not so much. I'm a very happy and optimistic person, yet I don't go out (here meaning social stuff besides the usual seeing and talking to a few friends, talking with colleagues, etc) more than twice a month. And that's actually a lot for me. This does not mean that I don't enjoy socializing now and then - I do. But I can say from personal experience that it is definitely NOT a necessity for me. I've sometimes done so for several months at a time, and have not noticed any side-effects.
It's true that for the great majority of people, going out and having a ton of social relationships correlates with increased happiness. For me, not so much. I'm a very happy and optimistic person, yet I don't go out (here meaning social stuff besides the usual seeing and talking to a few friends, talking with colleagues, etc) more than twice a month. And that's actually a lot for me. This does not mean that I don't enjoy socializing now and then - I do. But I can say from personal experience that it is definitely NOT a necessity for me. I've sometimes done so for several months at a time, and have not noticed any side-effects.