Let me be completely honest here and not throw out some pixie dust...it depends on what kind of a person you are.
I'm 22, did the CP last fall at the age of 21. There were so many people who had never left home before, even I was overwhelmed at some times of the immaturity of people both for partying and just life experience wise. Some people partied alot, and some just didnt know how to live with people period, having never done it before.
At 30, you're likely to feel out of place. It really depends on who you're rooming with though. Remember that some of these kids ARE 18, 19, 20, 21, 22 and want to get drunk and party, even if you might have work in the morning. Its very much a college atmosphere at times...though like I said, it depends on whos in your building and who you're rooming with.
But all this depends on what kind of person you are. I'm not trying to be a downer, just offer a different, honest perspective.