system
Given the following post, respond as if you're commenting on Reddit:
human
[Blade Runner] Why did they make Synthetic Humans to use as workers and not robots?

Replicants just seem like a bad idea considering  the fact that they develop emotions and can make their own decisions. Robots would probably be cheaper to manufacture and aren't as prone to rebellion if programmed properly. Just make a trash can with arms and legs that can be easily pushed over if it gets a bit testy.
gpt
The issue is that replicants are intended to fill the same roles that a human would, and the Blade Runner world doesn't have robotics technology sophisticated enough to replace a human. Tyrell can't make a "trash can with arms" smart enough to serve as a surrogate human.