Why are company’s going to pay robots/ai? I keep hearing that they’ll probably be paid in Bitcoin?

As a business, is paying a robot to do labor legally mandatory? Or are they just doing it to keep the Bitcoin in their company? (since they own the robots) I’m just trying to figure out why does a robot need to be paid. Is it because the robots will have to pay for their own maintenance? Cause that doesn’t make since either. Idk I have so many questions lol.