lol on GENERATION Y.

Why do we call the last group Generation Y?
Y should I get a job? - can't relate...
Y should I leave home and find my own place? - i would love to have my own...
Y should I get a car when I can borrow yours? - ???
Y should I clean my room? it's a must.
Y should I wash and iron my own clothes? can relate
Y should I buy any food? can't relate