My family always celebrated Christmas, even though we weren't very religious. Christmas eve at one grandparents' house, Christmas morning at home with my parents and siblings, and Christmas day at the other grandparents' house. But I have lived very far away from my whole family for many years now, and Christmas traditions seem weirder and weirder to me (though many times I or my partner have been able to bring my kids to spend Christmas with some part of my family).