Iknew nothing about birthday celebration in my childhood, nor even of the concept of “birthday” itself.Though I did hear that some aged people would hold a celebration for their 80th birthday, I was completely ignorant about the meaning behind this. Holding birthday celebrations seemed to be more common for me after I embarked on my career, as people around me always did celebrate for themselves and especially for their children. When my kids made a request, I celebrated their birthday the way other people did.