Casual inspection of the American populace shows that approximately 100% of all adult females carry around bags of one size or another. They usually call them "purses."  It is rare to find an adult American female without one.

Some of these bags are made of processed bovine skin. Some are of processed porcine skin. Others are made of vegetable or synthetic fabric. Still others are made from sheets of long-chain polymers.

Some bags are rather large--capacities of up to ten liters have been observed--and are commonly supported by a strap, usually of like material, that passes over one of the female's shoulders. Other bags are quite small and can be clutched in the palm of one hand. The typical bag, however, has a capacity of approximately three liters and has a narrow shoulder strap.

Bags with shoulder straps typically rest upon one shoulder only, which appears to cause many females to walk and stand with one shoulder higher than the other.

So the bags--"purses"--come in various colors, textures, and materials. What is common to all of them is that they are almost exclusively carried by the female. Oddly, the male American is almost never observed to carry such a bag.  (However they have a number of small bags built into their clothing that appear to have a function similar to the females' shoulder and hand bags.)
 

QUESTIONS: What is the function of these bags in the American society?  Why do only females possess and carry them?

ASSIGNMENT: Analyze the questions and the conditions they describe and prepare a written report of your analysis.