Time goes by so fast now! I heard that the older you get the less you worry about age. I hope thats true. A lot of my friends are worried about 30. I feel like its because by 30 you are officially an adult - you're supposed to have a good job or be married or whatever people think Is supposed to be success. So we feel a sense of failure if we aren't there yet. But twenties are comforting. Its like "okay I'm not as responsible as I should be but I'm still in my twenties".
Because people thin k in your twenties its okay to go party. In your thirties it stops being cool.
Then 30 finally comes and there's no excuse for certain types of behavior.