Every year I decline invitations from my mil and my dsis to spend Christmas Day at their houses.
I just like to spend Christmas at home with dh and the dc. I'm happy to have visitors if anyone feels the need but don't particularly want to host lots of people. Growing up Christmas was always at home with my mum, dad and siblings, didn't leave the house, that's how I love it.
Most people I know do seem to spend Christmas with extended family and there's usually some arguments over which set of parents they'll go to, or seating arrangements or who cooks.