Well my friends and I are hovering around 30 (some over, some under), none of us are married (although some have just got engaged) none have got kids (thankfully) and only a few of us have mortgages, it's great we still spend weekends getting drunk, we go on holiday together to "ig-so-tic" locations. We never really left our Uni days, we just got a bit older.
Although one of my mates is having a mid-life crisis, he's just bought a sportscar (well, an MG) and has got himself a 20 year old girlfriend who goes to canturbury Uni...hang on, that sounds a bit like Bear...