Really depends on you. I used to think that it was be better if I was single. I have the freedom to work, sleep, eat, and play when I wanted to. Who wouldn't want that? And as for the sex, meh I could make do with just myself.
Well then one day something happened I felt sad and lonely, sick and unloved. I admit it got so pathetic that I put my extra pillows in a row and cuddled them at night to pretend someone else was in the bed with me. Thats when I knew there was no way I could not be in a relationship.
I never would of predicted how helpful it could be to be in a relationship. You have a 24/7 friend who can talk out any issues, sooth and comfort you, cook you food and make your day a little easier. Sure there is conflict, but you if set aside pride and trying to win, they get resolved quickly.
There is also the safety thing. I didn't realize this till it happened. One night I was throwing up blood in the toilet, my wife told me she called the hospital and they said I need to come in right now. I lost too much blood to safely drive myself so she was there to make sure I got to the hospital. I could of died without her.
There is a lot of perks for being in a relationship.