the linkSIM_FAMILY looks like strange. A SIM can be a father of a family if he is male or a mohter of a family if she is a female. This is the fam_dad_id and the fam_mom_id of the family table. (almost) every sim is child of exactly one family. if it is a son or a daughter is decided by the sex of the sim and not by a role that mut be defined for the child. so the sim table must contain a family_id. the linkSIM_FAMILY can be removed.
miracle173
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