What non-demon character(s) you think they have all the reasons to be a demon? Why?

Why I picked them:

● Kanao: Before her adoption, she had nothing and she had nothing to lose. She was so dead inside that she seemed like a zombie and her past was genuinely awful, if it weren't for the Kocho sisters, she would hit rock bottom.

● Obanai: Similar to Kanao, he got a crappy life where he would constantly fear for his life and went through plenty of abuse. Had it not been for Shinjuro and had Obanai left alone, I feel like he would slowly fall into despair.

● Muichiro: Lost his whole family and saw the only family left alive die. At this point he became a shell of his old self who's only option left was killing demons. I feel like if he had no other options left, he would become a demon.

● Zenitsu: Abandoned by his parents and was bullied, double-crossed, lied to and underappreciated by everybody he knew. He had nobody and it's not like he got something left for him that couldn't make him consider the option to become a demon. If it weren't for Jigoro, I feel like he would become a demon out of pure despair.

So what do you think? Who else could've been a demon but choose not to despite everything they went through?