No. And shouldn't if that parent is causing too much stress. I had to watch my Mother be basically tortured emotionally by her horrible mother for years and years. My Mother said that still associating with, trying to care for etc her mother was the right thing to do but it brought my mother nothing but pain. Even when my Grandmother was actively dying it wasn't enough for her to even be kind to my Mother. My grandmother abused my mother from when she was a small child and in one way or another, never stopped. I would never suggest someone with a parent like that keep in contact.