The people who have had to do this shouldn't feel bad or guilty.
Excerpt:
"An accurate discussion of this sensitive issue requires the making of proper and nuanced distinctions about the consequences of removing nourishment from incapacitated patients. This generally becomes an issue in one of the following two diametrically differing circumstances:
(1) Depriving food and water from profoundly cognitively disabled persons like Terri who are not otherwise dying, a process that causes death by dehydration over a period of 10-14 days. As I will illustrate below, this may cause great suffering.
(2) Not forcing food and water upon patients who have stopped eating and drinking as part of the natural dying process. This typically occurs, for example, at the end stages of cancer when patients often refuse nourishment because the disease has distorted their senses of hunger and thirst. In these situations, being deprived of unwanted food and water when the body is already shutting down does not cause a painful death.
Advocates who argue that it is appropriate to dehydrate cognitively disabled people often sow confusion about the suffering such patients may experience by inadvertently, or perhaps intentionally, blurring the difference between these two distinct situations. "
(snip)
"Yes, it is true that when people are actively dying from terminal disease, they often refuse food and water. The disease makes the food and water repulsive to them. In such circumstances, it is medically inappropriate to force food and water into a person who is actively rejecting it. Indeed, doing so could cause suffering.
But this isn't what is happening to Terri. She isn't dying of cancer. Her body isn't shutting down as part of the natural dying process. Indeed, she is not dying at all--unless her food and water is taken away. "