Monogamy

 Monogamy is not a description of a relationship. It is a description of a reproductive strategy. 

 Polyamory is default for prepubescent children and non-adults and should be encouraged with the usual precautions for STDs.   In societies where women breed shortly after puberty other standards apply but given modern contraception strategies for men and women polyamory should be the rule until parenting is contemplated.  I am not talking hetero only here especially prepubescent and early teen sexuality.  Sow your wild oats to your hearts content on any infertile ground of either gender to determine what kind of sexuality makes sense for ones settled years which may end up to be childless polyamory.  


 If no children are planned monoamory may well be toxic. My generation gave the world the conceopt of going steady as early as high school, that is, dating only a single partner as long as the relationship lasts. The strain this puts on relationship building is overwhelming as sexuality, having fun on a date, and commitment to a single other who initially you may not know well does not work well.  Even more pressure is on the relationship if pregnancy before marriage is a violation of the norm as it was when contraception was limited to condoms.  Even with reliable contraception for women trying to combine sexuality, companionship, fun, and mental stimulation into a single relationship seems to put too much strain on both partners.   

 Most people contemplating children hetero or homo are monogamous as a tried and proven stable environment for raising children. It is not the only way. Polygamy as usually practiced one male several females seems to work in some cultures as the women share the child raising with the male as a resource provider and impregnator.  Single parenting is outrageously difficult, but possible.  An absent partner providing resources does help.