The Ecovacs Deebot T30S Combo robot vacuum and mop sort of admits defeat by coming with a manual handheld vac. But I really like that its dealing in reality rather than fantasy since robots cant climb stairs and they cant get to certain areas. Most people will still need a secondary vacuum of some kind. So it might as well be part of the base station. In practice, the experience worked well enough, but the idea is spot on.
Source : I Liked That This Robot Vacuum and Mop Admitted Defeat