This article considers the desirability and legitimacy of denominational schools from the perspective of socialisation theory. It examines the popular criticism that nowadays the common reason for the existence of denominational schools--the religious socialisation of children--is endorsed by a dwindling number of parents, which renders the existence of these schools obsolete. It is shown, however, that this popular criticism is based on a traditional understanding of religious socialisation as the transmission of faith. Counter to this traditional understanding, the article presents a more modern conception of socialisation as personality development. On the basis of this interpretation of socialisation, the pedagogical function of denominational schools is reconsidered. It is argued that the pedagogical task of denominational schools today is not so much to transmit faith but rather to facilitate the formation of personal identity as a core aspect of contemporary socialisation processes. (Contains 3 notes.)