Superman is an icon, not only of comics, but of pop culture. He's the top of the food chain as far as DC superheroes go, possessing a powerset, sense of justice, and outlook on humanity that makes him a paragon of virtue.
Except for those times that he has enough and packs it in.
For being Earth's foremost hero, Superman has a surprising tendency to throw in the towel. Now, to be fair, it's not like he'd roll out of bed and be like 'Meh, I don't feel like fighting crime today. I think I'll skip the gym and then sit on the couch and binge (DC's version of) Netflix for eight or nine hours."
No, for Superman to quit being Superman, or at least to stop representing what Superman has always stood for, it has to be something pretty drastic, something that would push mere mortals, let alone a man who can literally move mountains, to their breaking point - death, love, remorse, loss.
As Darkseid has reminded Kal-El many times, super or not, he's still a man, and even the steeliest of men reach a point where they say 'Enough's enough' and make a decision to hang up their red, yellow, and blue spandex.
Keeping that in mind, let's take a look at ten times that Superman put the 'man' first and walked away from his role as Earth's most powerful defender of truth and justice.
Child of the Canadian '80s. Fan of Star Wars, Marvel (films), DC (animated films), WWE, classic cartoons. Enjoys debating with his two teenage sons about whether hand-drawn or computer animation is better but will watch it all anyways. Making ongoing efforts to catalogue and understand all WhatCulture football references.