Yes, parents should be made aware of the decision of the child

Without parental permission, only children over the age of 16 can receive gender-transition treatments. The reasoning behind parents not giving permission must be recorded and displayed to the child and the doctor to assess if their reasoning is valid. If yes then the child must wait until they are 16, if not then they would be allowed. Of course, there would be a form of criteria to assess this from. Parents must be made aware at any age, but have no control over the transition treatment go ahead after the child turns 16.