system
Given the following post, respond as if you're commenting on Reddit:
human
Why does the phenomenon of hazing happen?

Like in the military the phenomenon of Dedovshchina.
gpt
Johnathan Haidt sheds good light on this IMO. He talks basically it acts as a right of passage, which we see across most tribal cultures. Likely acts as a sort of way to prove worthiness and allegiance to the group.