Are all monsters in Japanese anime wearing masks because of cultural traditions?

Personally, I think that science and technology were underdeveloped at that time, and many phenomena were not reasonably explained. Finally, they were blamed on ghosts. Later, in order to exorcise ghosts, people made masks of monsters or beasts that looked more horrible than ghosts to scare ghosts, hoping to achieve the purpose of exorcism and comfort themselves. Later, with the strength of science and technology and human beings, those masked exorcism activities gradually evolved into blessing and celebration, and ghosts lost their bodies and gradually could wear masks.