In NDPR Carolyn Culbertson reviews
Lawrence J. Hatab's Proto-Phenomenology and the Nature of Language: Dwelling in Speech I
Heidegger does not speak at all to the different stages a human being goes through when she develops language. Instead, he focuses on the stark difference between the human being, as the one who has language, and all other living creatures. While Hatab too insists on the significance of this difference, he rightly points out the mistake that is made by philosophers who completely ignore the early childhood years during which we start to acquire language. After all, by looking at this period of life, it is easier to recognize the way language acquisition affects how one dwells in the world and develops in conjunction with practical, social forms of knowledge.