It is entirely understandable that the parents want to pursue every possible avenue, however unlikely it may be to succeed. If Charlie were to be sent for this treatment, even if it were to be unsuccessful, they would at least have the comfort of knowing they had tried everything possible. Who can blame them for that, or fail to sympathise with their desperate situation? It must be tempting too for the judge to follow this line. However the law is focussed on the best interests of the child, not the parents. If the court agreed to send Charlie for treatment to make the parents feel better, rather than because it is in his best interests, it would be failing in its duty to him.