We've done this since having DC as I want DC to wake up and enjoy the day / their toys in their own home without travelling. We also go to a lovely local event on Christmas Eve every year.
Grandparents live 2/3 hours away. We tend to visit them on 26/27th for a day each or thereabouts depending on their plans.
We are not really close to either sets of grandparents and both DH and I had quite difficult upbringings, though we do love our parents but more out of sense of duty if that makes sense. DC aren't aware and have an ok time with their grandparents, if feeling a little bored (and they are a bit strict).
One grandparent now sadly has dementia and it looks likely that they will need residential care in due course, so the other will be living alone. I'm wondering how Christmas Day will pan out in that instance.
Both DH and I have a number of siblings but again not close - on polite and friendly basis, weather conversations , how's work going etc. Most of our siblings are single / child-free, and in recent years some or one of them has visited the grandparents on the day itself.
Anyway each year I read on MN about families getting together and feel a bit guilty but equally I do feel I'm not close to my birth family and that my DC and my DH mean the world to me so they are my priority for the day itself. Not sure if that seems silly. Strangely even my mother and father only visited their parents on Boxing Day and the days afterwards, and ringfenced the 25th for our nuclear family when I was a kid.
Does anyone resonate with this? I'm interested to hear about other peoples arrangements.