Primary and secondary schools and Catholic kindergartens are educational institutions of a special nature. This study concerns the analysis of the applicable Polish educational provisions regarding religious education in these institutions and the proposed changes in the applicable law. Currently, parents can choose to study religion or ethics for their children. They may also choose not to make any choice. In practice, there are situations in which parents choose a Catholic school but do not want their child to participate in religion classes. In such cases, disputes often arise in the relationship between parents and their children and the directors of Catholic schools. This article proposes changes to Polish law to eliminate this type of problematic situations by guaranteeing religious education in Catholic educational institutions in educational law. Parents choosing a Catholic school for their child would also be bound by their choice. In the event of a change in their beliefs, realizing their constitutional right to freedom of conscience and religion in private and public life, and in particular the right of parents to freely raise their children religiously and morally in accordance with their beliefs, they would be obliged to transfer the child to another school that meets their expectations.