Friendly reminder, all the crows are TEENAGERS!
Kaz is basically a criminal mastermind, leading a gang, doing the Dregs taxes in his head, and he wouldn't even have graduated high-school yet.
Inej was kidnapped by slavers and sold at age 14. She became an assassin at 16.
Jesper dropped out of university and developed a gambling addiction at 15.
Wylan took over his father's merchant empire at and had his father put a hit on him while he was 16.
Nina was a child solder. She got captured by slavers and escaped. She got someone she cared about sent to jail. She developed a drug addition. She's 17 years old.
Matthias' family was killed when he was 13. He became a child soldier like Nina after. He got sent to hellgate at age 18.