Isn't the idea to go out alone and make new friends? You shouldn't have to go out alone tons. Just enough to meet new people.

It may be, but it should not. You can go alone for the purpose of making friends with yourself. I this is why, I think, lots of people prefer not to be alone: they are afraid of reflection. Or, god forbid, being alone in silence, without some loud music to deafen the voices you might hear. I see being alone as a kind of meditation.

I'm not afraid of reflection or silence, not at all. Just doing things isn't fun alone and after a couple times doing something alone I decide staying in is more entertaining.

Yeah, I should've added the caveat that I'm not so good at that ;). Maybe this article is targeted at already outgoing types.