[@NarcissisticPotato]

That depends on the character and whether they will benefit from their backstory or not. Usually, back stories give good insight on why a character acts the way they do.

Take someone like Steve Rogers, for example. Big guy in a small body, always gotta prove something, lived in the Great Depression, mom died when he was young. He's stubborn, bullheaded, and has anger issues - when he's set, he's set. In Civil War, at least in the comics, he tramples over everyone to do what he thinks is right. Yet, Steve's inherently good, at heart and that's because of his upbringing but also not. Sometimes backstory gives you a lot and sometimes it's used to juxtapose a character's personality. Good despite not having anything.

Same with Clint Barton. His backstory, most of all, shows us who he is and what it made him. Clint wears his heart on his sleeve. He's just such an impeccably good person and happy person it's hard to know what he went through and harder to acknowledge his own depression.

ANYWAY ENOUGH OF THAT. Do what you think is right for the character regardless of overuse and cliches.