Will the people with a lot of WE have the time to hang out (I guess a lot of them will be married or in serious relationships)?
[ Please, all "younger" applicants in my social demographic - don't leave me stranded there by myself!
With all of that said, I'd like to counter the idea that married people (or "older" people) don't like to hang out, go out, or have fun. True, I'm drunk less often than my senior year in college, but I consider that to be a big plus. And, I enjoy a good party or a good night out as much as I ever have. My spouse and I definitely like to hang out together (what's the point, otherwise?), but we're still pretty fun people who lead somewhat independent lives.
I would take a look at the average ages of the students at NU if you are concerned about it at all. Go to the Day at Northwestern if you can and take a look around, if people seem to fit your vibe, then I'm sure you'll be fine. "work experience" isn't always 10 or 20 years, like the poster above I will have 2 years. Eerily also one as a legal assistant and one in a more technical put numbers in job. We're also both in at UVA and NU, Celarkobri are you me or am I you?