[zasz]

The parent comment isn't saying that death isn't a part of life. He's saying that it was pretty rude to say that in the context of the grandparent's comment. He's not telling you, or anyone else, how to feel. He's trying to tell you that sometimes you should look at the social context you're in, and not say the wrong damn thing. Ironically, he failed while chastising someone else who deserved it.