Marriage is a sacred custom to perform. For each area the marriage has its own unique way of doing things, and usually when a family intends to host the wedding of all the village folk or local elders will create the execution mechanism by arranging all the parts and dividing into several groups, all having a post and assignments.
Washing dishes is usually done by women, but where we all do it by men in turns when the first group is exhausted it will be replaced by the next group in view of the need for food dishes so it must be cleaned up immediately.