Given the configuration of the right of opposition (art. 21 RGPD), it is not essential that the center addresses the minor to ask him to specify or justify his request, for the purposes of making a decision on the exercise of this right. This is without prejudice to the fact that, although not mandatory, the center may request additional information from the minor. With the information available, in a case such as the one raised, the existence of compelling legitimate reasons, specified in the rights and obligations of the holders of parental authority and in the repercussions that this may have on the provision of adequate assistance, always for the benefit of the child, it may justify maintaining the mother's access to medical history data.