I think there are examples of what you're saying. I remember reading in "The Emperor Of All Maladies", by Siddharta Mukherjee, about experimental chemotherapy treatments that initially only extended the patient's life by 6-12 months. Later, as science advanced, combining these with new therapies greatly increased the survival rate.
But in the end, it is an individual choice. There will always be some who choose to fight no matter what (and they should be aware of their chances) and there will be others who prefer to let go.
But in the end, it is an individual choice. There will always be some who choose to fight no matter what (and they should be aware of their chances) and there will be others who prefer to let go.