All cultures make up myths.
The same way you know about your god(s), if any. Most all cultures and civilizations had writings and artifacts, along with oral stories, that inform us today about their culture and beliefs.
no. but in some myths he is older but in most myths he is younger then his sisters.
Just about all of them.
The original purpose of myths was for the Ancient Greeks to attempt to explain mysteries that they could not otherwise explain, but now myths are merely entertainment, as all other fantasy is.
All cultures make up myths.
Almost all cultures have myths.
Well, one aspect of myths that cannot be denied is that they are ubiquitous across all countries and cultures. Every society has its own form of myths, and interestingly, often these different myths are re-tellings of central archetypal stories that are changed slightly to fit different cultures and experiences.
Yes. Many cultures have myths about shapeshifters.
There are many myths that recur around the world, such as creation myths, myths about the origin of fire, and flood myths.
they may have something in common as cultures.
All cultures had myths. They provided explanations for why things happened (e.g. the seasons, storms, earthquakes).
Cultural views and beliefs.
To explain why things are the way they are
Yes. Consider Hercules and Sampson, Thor and Zeus, Beowulf and Saint George,...(others are invited to expand this list)
Myths are stories, literally. Nothing more. Often myths are associated with specific cultures and have traditional or legendary elements. As with all stories, myths concern a character, a hero or protagonist, who may or may not be based in fact. Typically, stories referred to as myths have an allegorical component.
Origin myths are traditional stories that explain the creation of the world or a particular culture. They often involve supernatural beings or events, and serve to provide a sense of identity and purpose for a community. These myths can vary widely between different cultures and societies.