Why do we have to fear death?

Death is as birth. We celebrate birth, let's accept death. Movies, books, even religious teachings cause us to fear the inevitable. I don't fear my own death. I am concerned about my loved ones figuring out where to find their missing socks, remembering to feed the cats, missing me. And of course I dread being left here without my loved ones. Expecting their call long after they have passed from this earth. I once believed that I would not survive the death of my father. It was a childhood fear that woke me from nightmares. He has been gone now for 15 years, then my mother, I am parentless, yet still able to survive. The passing of my best friend still bothers me  18 months later, I want to call her. But I don't fear where they have gone. I just miss them. I don't want my kids to fear death. They have been exposed to the usual horror movies, etc. They have exciting lives to carry out without the burden of fearing the inevitable.