Inheritance on death of family member

I am aware that upon death of a household member the items and money go to the household inventory. Another suggestion maybe, is to link the money distribution to the genealogy of the diseased sim (excluding) other deceased sims in the genealogy tree, on a sliding base to the currently active household. E.g. All living family members: spouse = 80%, children = 10% divided by number of children, grandchildren = 8% divided by number of grandchildren and other relatives 2% divided by number of other relatives. This also means that even if the family members are still living in the active household e.g. 1 child, the household funds will be (80% (spouse) + 10% child), If there are no children or grandchildren or other family members the funds remain in the active household etc....