But people don't get large facial scars in a vaccuum. It's very likely that something awful and traumatic happened to them which caused the scar. The events leading up to my scarring were over fifteen years ago and I can still confidently say its the worst thing that's happened to me in my life.
As others have said, restaurants, traveling, family, and holiday traditions are all missed, but one thing that really gets me is spontaneity. On a day off I used to love to just leave the house, maybe for breakfast or lunch or whatever, and just see where the day took me, maybe shopping, for a walk to take pictures, an early beer at the neighborhood bar, whatever. Now, every trip away from home is for a purpose and rigidly planned.