“Section 54 goes to the most fundamental aspects of status and, transcending even status, to the very identity of the child as a human being: who he is and who his parents are. It is central to his being, whether as an individual or as a member of his family. As Ms Isaacs correctly puts it, this case is fundamentally about X’s identity and his relationship with the commissioning parents. Fundamental as these matters must be to commissioning parents they are, if anything, even more fundamental to the child. A parental order has, to adopt Theis J’s powerful expression, a transformative effect, not just in its effect on the child’s legal relationships with the surrogate and commissioning parents but also, to adopt the guardian’s words in the present case, in relation to the practical and psychological realities of X’s identity.”