Poverty  is also a factor to consider when it comes to polyandry. The more privileged children of polyandrous mothers often don't engage in the practice I think (a) because of the stigma associated with it and (b) because outside of a very well defined set of economic, social and geographic circumstances, it can be quite a daunting task to 'manage' many husbands. To rely on tradition and social pressure to counteract basic instincts like anger, jealousy, possesiveness doesn't usually work well for long IMO

(Hey there Samsara - how's it going?)