Should we celabrate peoples birthdays after they have died

I think we should celebrate peoples birthday because if a family or a friend who died you could celebrate there birthdays to remember them and share some of the time with you and have some fun with your family member or a friend and then they could go back.why should we do this so we can remember the person who died and have some fun together. when they celebrate they are all dressed up as skeletons and have a enormous festival with dancing,food,singing and lots of more But before you do that the souls come down to celebrate with you.