[TheRealThing]

FWIW...
Millennials wouldn’t be the kids on the beaches. Millennials were born from 1980 to 1996 are 24-41; generally those ages aren’t your Spring Breakers.

You narrowed the timeline attributable to Generation Y to win a debate point. The full definition says the ending date of birth for Millennials extends into the early 2000's. Millenials will continue to hit the beaches for a number of years to come.