For many Millennials, it had been a long time coming. We were the first generation that encountered a large number of out fellow high-schoolers and college classmates. Some Millennials don't remember a time when there wasn't a gay person on TV. So when Massachusetts passed same-sex marriage on May 17, 2004, many of us recognized it as historic but at the same time considered it not a big deal. It was OK -- great even -- to many young people. Reflective of the Millennial mentality of this issue: An NBC sitcom this fall will feature a woman becoming a surrogate so a gay couple can start a family. It's called "The New Normal," but to many of us, it has always just been "normal."