XP is a culture not a method. As a culture, XP has significant appeal to those seeking a more humane and effective way to develop software. Recognition of XP as a culture, and establishing mechanisms for expanding that culture, is essential for success. However, characterization of XP as a culture, by outsiders, is a significant threat to adoption, unless the XP community acknowledges being a culture and uses that self- awareness as a tool for promotion. This paper will be devoted to arguing the preceding assertions and suggesting enculturation as a way to address the challenges that arise from them.