The somewhat longer answer is that Gege Akutami was heavily inspired by "Naruto" and Gojo is a homage to Kakashi, Naruto's own mentor (who similarly has white hair and covers half his face).

Gojo Satoru was first introduced in Jujutsu Kaisen as an overwhelmingly powerful sorcerer, someone who seemed untouchable in both strength and attitude. His arrogance was painfully evident, and ...