Christmas is celebrated in Japan because it is a cultural tradition that has been embraced by the country. It is a time for family and friends to come together, and the spirit of Christmas is enjoyed by many people of all ages. In Japan, the celebration of Christmas is typically done in a more secular way, with people exchanging gifts and enjoying a festive atmosphere. There are also special Christmas-themed events, such as visiting Christmas markets and attending special Christmas concerts. Some Japanese people also celebrate Christmas Eve with a special dinner, similar to a traditional Christmas meal in the West.