You never see any TV shows about people right out of college, unless they're in medical school. Sure, you may see a random character who is the "just out of college age," but that character is never the focus of the show.
I know why they don't have shows like this: they would suck. The time after college is the biggest let down ever (at least for me, and I'm still in school). You go from a huge social environment to trying to adapt to the "real world." This transition is rough, and often boring. On top of that, there's no TV saying "this is how it could be." Instead, we get the "Real World," which is about as real soap operas.