With AI they can dispense with thinking too. And with an Optimus robot they won’t even have to go to the store or leave the lay-z-boy, raw unprocessed beef fat can just be shovelled into their unthinking and illiterate mouths every waking hour by the droid.
Bold of you to assume they'd still need to do actual living. Why not immediately die, and be spared all the extra effort?
Movie: Wall-E -> showing what you are saying :-D