It's acceptable.
From the patient's own point of view, a living will allows the patient to make his or her own decision about whether or not to continue treatment. From the definition of a living will, a document signed by a person who is conscious, directing which medical care they want or do not want at the end of an incurable injury or illness, or at the time of death. The signing of such a directive document can save a patient from suffering at the end of an incurable injury or illness. In the case of major injuries and illnesses, most decisions to continue treatment are made by the family, and most families would prefer to keep the patient alive for as long as possible, if not for financial reasons. However, in the case of incurable or minimally successful surgery, some patients themselves may prefer to live out their final days in peace rather than remain in a four-square room. The beginning of life is destined to end. People have the right to live, and in their last hours they want to have the right to make the final decision, whether to continue treatment or to give up. Because everyone can get sick, and no one wants to continue to suffer if they can't be cured! The intent of the living will itself is to honor the patient's right to make decisions about his or her own life. However, the implementation of the living will is the patient is in an incurable state, the doctor chooses to respect his will and not to treat, then the determination of incurable state, what kind of procedures need to go through, whether it is the results of the attending physician's diagnosis and treatment as the main judgment and so on are particularly important.So, living wills are acceptable, and their actual implementation still needs to be improved in all aspects.