For parties
Silicone masks are often used for creation of Halloween or scary masks or for masks of popular film, TV or cartoon characters. Most silicone masks are not 100% silicone, instead being at least part latex.
chhau dance or masquerade
Tires for trucks and planes soles for shoes gas masks and oxygen masks
MS13 - Mara Salvatrucha
aboriginal people like coast salish or squamish. first nations make tons of masks. the masks can resemble wolves,bears,eagles,raven,and any other aboriginal animal.
The site below has a fairly good explaination of the uses of subnet masks.
Daft Punk wear masks because they do not want to be recognized in public. They want to keep their private life separate from their public life.
There are twenty-four different masks, because Link uses the Mask's to do different types of things throughout the game, also the four Boss Masks are the Mask of the Spirit that was set free.
The oni are referred to as demons, devils, ogres or trolls. The masks are often ogre-like with horns. However, the imagination of the creators is what sets these masks apart. The masks really do not fall into categories, just a little different uses with different cultural celebrations, such as parades, the Setsubun festival, and even in the design of new buildings.
He uses it to coceal or hide peopls identities and also he uses pig maskes because he first started his work as jigsaw in the year of the pig
the uses of papier mache are endless. It can be used for making masks, figuirines, sculptures, ornaments as well as party things like pinatas.
Culture, religion, or maybe intimidation on the battle field would be my guesses. Or beliefs, but that would go with culture.