It's mostly through tradition. Sexual promiscuity not only has been shunned for religious and cultural reasons for centuries, but think about it back then from a practical standpoint. What do you do when the girl your fucking has a kid and you're married? What does it do to the child/girls husband? Who raises the child? Yes, in our current society this is becoming more of the norm and somewhat of a "non-issue" but it still has presented a serious problem for polyamory in the past. Back in the day there were only two main methods of "birth control"; Abstinence and coitus interruptus (our in the parlance of our times "Pulling out.") As I'm sure you know this second option isn't very effective. It only made sense for people to shun away from polyamorous relationships from a logistical standpoint... (This doesn't even account for the religious and cultural reasons before it...)
Just thought I'd add a different perspective. (No interest in discussing the matter further.)
Cody
I fully agree it mostly has to do with an institution that was useful to us in the past but that we have had trouble abandoning. My question is mainly why people still feel that way when monogamy has lost its function in society.


