Generation Why?

 -  People born before 1946 were called The Silent generation..

- People born between 1946 and 1964 are called The Baby Boomers.

- People born between 1965 and 1979 are called Generation X.

- And people born between 1980 and 2010 are called Generation Y.

Why do we call the last group Generation Y?

Y should I get a job?
Y should I leave home and find my own place?
Y should I get a car when I can borrow yours?
Y should I clean my room?
Y should I wash and iron my clothes?
Y should I buy any food?