What is the function of scarf?

1. In cold climates, people wear thick scarves made of wool to keep warm.

People can wrap a thin scarf around their heads to keep their hair clean in places where the climate is dry, dusty or air pollution is serious.

With the development of time, this habit has become a fashionable dress for women in many cultures.

Knitted scarves and other clothes are common trade goods.

Some Australian football fans also use scarves. They will show and wave and cheer in the audience.