For a moment, just think of mankind’s early days on earth. Whether or not you are a staunch proponent of Darwin’s theory of survival, whether or not you believe that mankind has evolved from apes, you would have to agree that mankind roamed around naked in the early days (Sorry, couldn’t have been more polite)..
Relying on one paycheck is no longer cutting it for most Americans. As the economy changes and responsibilities pile up, so has the need to make some bucks on the side increased. And it is not only about making money on the side. The need to have flexible working hours and freedom of choice when.