Because it correlates with intelligence and seems indicative of deeper trends in animal neurology. Probably not a signpost that carries over to arbitrary robots, though.
Because it correlates with intelligence
The problem with that is that, for any being that can't clearly and unambiguously report its experiences of mirror self-recognition to us (nonhuman animals generally -- there are claims of language use, but those would be considered controversial, to put it mildly, if used as evidence here) we have to guess whether or not the animal recognized itself based on its behaviors and their apparent relevance to the matter. It's necessarily an act of interpretation. Humans frequently mistake other humans for simpler, less-...
Apparently a PhD candidate at the Social Robotics Lab at Yale created a self-aware robot:
What do Less Wrongians think? Is this "cheating" traditional concepts of self-awareness, or is self-awareness "self-awareness" regardless of the path taken to get there?