This is a very necessary question and I do believe should be addressed. In a situation like this one, I think both parents need to be reminded that the choice for fertility preservation in a child will impact the child regardless whether they disagree on the topic or not. Ultimately, making the choice for fertility preservation (of course along with considering the child’s response) should focus on the fact that when the child reaches the age to make their own decisions and can make educated choices for themselves, having to choose to have their own family would only be possible if fertility preservation happens. I do believe that should be a part of the treatment plan for their future and survivorship. If the disagreement between parents is hostile, an ethics consult may be a possibility so the focus remains on what is best for the patient over the moral disagreement of the parents.