Ghost needs are things like being remembered and not forgotten. So, socializing with their loved ones should be one of those needs. Doing the things they enjoyed doing when they were alive. Good ghost can protect and help make their loved ones feel safe. Maybe they can protect their loved ones from things like Vampires or Bad Ghost. Maybe they need to have their loved ones care for their burial site. Neglected Ghost Sims become Bad Ghost. Bad Ghost will break pipes, break electronics and cause the lights to flicker. They will stack objects in an odd manor. They will knock things over. They will frighten your friends away. They can haunt a home or posses and attach themselves to an object such as a doll,
I think loved ones should decide where to bury their dead. They can chose Cemetery, Gravestone or Urn. Cemeteries should come with a chapel or a place to have an open casket funeral. Some Sims just need to see their loved ones and say their final goodbyes. It would help to hire grieving counselors to your funeral to help your Sims process their loss. Sims should also be able to throw funerals for their pets. Sims can make flower arrangements for Funerals.