You've lived there for 18 years. I assume that means you have 18 years worth of friends, family, neighbors, memories. Completely unrelated situation. Imagine

You've lived there for 18 years. I assume that means you have 18 years worth of friends, family, neighbors, memories. Completely unrelated situation. Imagine if you knew no one there when you got there, didn't own a car, were single, had no kids, and your nearest family member lived 1000 miles away. That's the kind of isolation a lot of undergrads and grad students face there. And the town of Princeton doesn't really have a whole lot for them.