What's your stand on being single vs being in a relationship/married?

Today I told my grandma that one of my brothers is getting married soon (well, not really that soon but more likely 2 years from now). She snorted and told me it's not going to happen since he's not financially stable yet. But I told her that's his plan all along, be married at the age of 28. And then she asked me, what about me. I answered I don't have any plan on getting married or be in a relationship ever. Then she goes on and on about having a family is better. So what about you guys? What's your opinion about it?

P.S. It's true though, if there's one thing I don't want in this lifetime or my next lifetime (if ever it exists), it is that I don't want to get married or be in a relationship. I never thought of that not even once. Some of my friends had a bf/gf when I was still a student, but I never once felt that same longing. If there's something I want to do, it is to get a dog or dogs. Although having your own family seems great, it's just not for me, not interested, and will most likely make me miserable because it's something I don't want to do.