My dad became a quadriplegic at age 58. My mom and I cared for him for the next 17 years. His insurance company kept trying to put him in a nursing facility since it would be cheaper for them. We ultimately took them to court and won. The Judge said the decision was up to my dad. The insurance was ordered not to contact us again regarding this issue. Although my dad didn't have Hospice but my mom did. I agree with @ebtexas55 that the family or healthcare power of attorney has limited powers. I'd only use hospice if no other alternative existed. But care homes, hospitals insurance companies do try to push you around. Be prepared to stick up for your rights and get attorneys involved when necessary.
Take care,
Jake