In a pluricultural and multi-religious world, with high levels of social secularisation, the role of religious education in schools (especially in state-funded schools) has inundated political and academic debate throughout Europe, which is becoming increasingly more committed to integrating, non-confessional models. In this context, it is essential to analyse how religious education is managed in countries whose relationship between state and religion is still firmly rooted (as is the case of Spain), and what the action of schools and families is in contexts where confessional religion is maintained in schools. Based on a quantitative study of 380 representatives of primary school management teams, it is seen that one in four schools does not teach any type of religion, either due to a lack of demand from families or because the school chooses not to do so. In addition, the study shows the practical limitations of the confessional model to provide a response to the religious and secular diversity of our time, as the implementation of minority confessions is very scant whilst there is a primacy of the catholic confession in the religion subject.