Humans are messy to deal with. Say you're rich enough to afford a personal chef. Unless you're an inhuman monster, their problems become your problems as well. So if your chef is out because their mother is sick and needs someone to take care of her, you pay for a nurse for your chef's mom, so that you have your chef. A robot servant is still gonna need maintenance, sure, but it's a bit easier to be callous to a robot than a person.
But for now, humanoids are still relatively incompetent. So if you're rich enough and you want things done like cleaning and cooking, it's more convenient to hire a human and give them specific instructions instead of buying a robot that can currently do only half the things they want to get done. Or they just want a nice gadget.
>but it's a bit easier to be callous to a robot than a person.
George Jetson always dreamed of beating a robot chef/maid.
I think that’s a feature. Not a bug.