They can't let you down if you don't have any.

You can do what you want and no one can judge you

No drama.

Free time! Not caring for others influencing you

There are no advantages.. everyone needs someone, even if it's just to know someone is living in a room next to you

When you are at some event and you want to go home, you don't have to waste time hunting them down if they wandered off.

you shouldnt wanna be a loner sometimes it just happends like i dont have any friends so i dont really have a choice