Humanoid robots are really only prevalent in fiction, and there's a case to be made that, with a few notable exceptions, the human form factor is not particularly well suited for the industrial work that robots excel at.

the best argument in favor of humanoid robots is that humans spend most of their time in spaces that were designed for humans*. i mean, remember in Robocop when ED-209 got stuck because it couldn’t go down stairs? (*putting aside accessibility issues)