Dinner with a friendly polygamist and his family, well some of it, he has 35 children and 44 grandchildren. He spent several years in prison for polygamy and for marrying an underaged girl - she was 13 years when he married her. She is now 47 and still together with her husband, she is one of his three wives.
As far as I could say, this family looked happy.
Which is not to say that I’m into polygamy, not yet at least, for those who are not obsessed with procreation is and old-fashioned affair maybe the better solution.