Robots are friends.
When you really think about, robots are better than friends. I mean, when was the last time that one of your friends came over to your house and vacuumed everything for you?
Ok, so we didn't know about your friend Derek who's kind of a neat freak who came over to your house last weekend after you had that party and vacuumed everything for you. But you surely don't have a friend who lives in your house and will vacuum your floors for you every day, do you?
Ok, well we didn't know that you actually have a friend crashing at your house right now who volunteered to help you vacuum and clean anytime you want.
But do you have any friends that are robots who you can build personal relationships with so they can vouch for you when the inevitable robot uprising comes? We didn't think so. And you definitely don't have any friends who can do all that AND clean your floors for you.