Xmas Eve. A scenario for every status…
single: party with friends
boyfriend/girlfriend: Xmas Eve is a big deal, dinner, drinks, a little bit of fun, exchange a present or two.
married (no kids): date night! out for dinner and drinks..? home for.. fun?
married, w/kids: home party, usually consisting of Kentucky Fried chicken, and a shortcake for dessert. That’s like the ‘standard’
Of course now, there are plenty of other things to do, go to, eat for dinner or dessert, but still… quite common!