system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we wear collared shirts when we want to look fancy?
gpt
Basically because that's what others think is fancy.  It's just a social construct.  It's like the question what makes a country a country.  It's really if other countries recognize it as one.  Same thing.  The only thing that makes a tuxedo "fancy" is that that's what everyone in the world has been trained since birth to recognize as fancy attire.