Editing TROS in the Hammer:Setting Political People (section)

===Child-rearing===
Children are reared in the tribe to which their mother's belong.  They will usually know who their fathers are, or at least who the short list of possibilities are, but are actually reared by their uncles; usually their mother's brothers, but also her male cousins and other relations.  Some tribes centralize child rearing in communal creches, while others maintain a strong mother-child relationship.

An important custom regarding child-rearing among the people is the trade or exchange of sons between tribes.  Sometimes, either as payment of a debt, as part of an ongoing alliance, or to cement a newly established alliance, a tribe will either give one or more of its male children to another tribe, or exchange male children with another tribe.  In an exchange, it is typical for two mothers to swap newborn children.  This is often referred to as swapping seeds.