Is a human's life and death, really as simple as ABC?

While taking care of my elderly, crippled mother, I have learned a new lesson about life. I once had thought that taking care of a needy, elderly person would be easy. I have learned this is not so. In my earlier years, I had a mental plan in place to take care of my parents in their golden years. My plan did not go as planned, especially with my mother. My plan was as simple as ABC. A-to provide the necessities for my mother(doctor visits, prescriptions, grocery buying, pay her bills and general upkeep on her house). B-nursing home care, sickness, accidents, slipping into a death mode, and finally passing away. C-taking care of leftover bills, funeral arrangements, notifying the family, and selling her personal belongings and her house. Because of my mother’s rotting bed sore ulcer, today she will be cremated. Question: Did I leave out D? The time of mourning? Should there be a D added to someones death responsibilities?