Wow; what a question. First off, the "Party Scene" would have to be very low on your priority list. The reason I say that is because the academy isn't just another school. It's not the kind of place you go to because you applied there and 3 other schools and they happened to accept you. You apply to an academy because: (My Priority)
1. You want to serve your country in the armed forces.
2. You want to become a commissioned officer in the armed forces.
3. You keep the possibility that the military could be a career.
4. Whether you make it a career or just 5 years after graduation, you received an education that also taught you discipline, commitment, dedication, team work, and service to others before oneself.
5. And you want a military environment for education and your life.
Now; if these reasons aren't part of the reasons you would apply, then I have to respectfully suggest that you rethink your decision to apply to the academy.
As far as a social life; yes you get to socialize. But it's not going to be the social life that you might expect. Not during your 4 years of school. You will be up most days at around 5:30-6:00. You're going to dress in a military uniform 90% of your life. You are NOT allowed to come and go as you please. You will be able to hang out with classmates, go skiing, go downtown to a movies, play sports, and all the similar things. The overwhelming majority of people you meet will be classmates. As for alcohol; the law says 21 years old. If you want to drink before the age of 21, then you don't really care too much for laws, then honestly;;;;;;; We don't want you. I can't speak for everyone, but the academy is made up of students who either have, or want to have; integrity, honor, pride, and professionalism. Some obviously can't cut it and they drop out. But the fact that you even mentioned the word alcohol; unless you're already 21 years old (Which you should have mentioned); leads me to believe that your social life is more important to you than the mission and goal of the air force academy.
If I misread your question and read into it too much, then I apologize. But the academy while similar to civilian schools academically; is in no way similar socially. And having a social life in the academy, while definitely there, is not usually of any priority to most people on these forums who are interested in the academy. They are usually interested in the training, academics, military service, career, commitment, etc... To them, the social life part is secondary, and they'll accept whatever they get. If social life is in any way part of your decision making process; then again, I suggest you rethink the academy as an option. Just my opinion.