When my parents first got married, my maternal grandparents realised there would be a clash of places to be on Christmas Day. So instead of making mum and dad choose between their families or splitting the day in half, my grandparents came up with a family celebration on the Sunday before Christmas.
The tradition has stuck and we’ve celebrated that way ever since.
And it has made life easier as mum’s siblings got partners, too, and then the grandchildren got partners, and people had interstate relatives… Not only does it reduce the stress of Christmas Day, it has allowed us to celebrate together before some went interstate to be with other family.
Works for us, anyway.