Do you mean the general idea of Christmas celebrating the birth of Christ?
Because many, including myself, take Christmas as a celebration on Dec 25th every year to gather with friends and family, give presents, eat drink and create memories. There is no religious aspect or at least, it is ignored. I really think that everybody, without exception (including me) should be FULLY educated on the reason why we have the Christmas celebration and all of the non religious parts that are not spoken of.