The barriers and challenges that Palliative care has

Hello, I am doing a nursing task and I do not understand what are the barriers and challenges that palliative care has. I would like help please, if you can list them or divide them even better.

Palliative care is specialized medical care for people living with a serious illness, such as cancer or heart failure. Patients in palliative care may receive medical care for their symptoms, or palliative care, along with treatment intended to cure their serious illness.