I sometimes wonder at comments or threads that inquire as to
"why we invented alcohol," or
"Who invented alcohol?," or
"what purpose" alcohol serves in the first place.
I've rarely if ever responded to those threads, in part because the answers to those questions greatly supersede the scope of the questions asked. The answers involve a working knowledge of -- or a willingness to learn or appreciate -- the basics of evolutionary science, human history, zoology, and both general history and general science.
This might help:
Editor's Note: The following is the introduction to the March 2015 issue of Scientific American Classics:
Intoxicating: The Science of Alcohol Alcohol: An Astonishing Molecule - Scientific American