'mating dance'.
In the wild animals display certain attributes in order to prove their worth. This can go both ways.
In human world, we can show off a car, show off our clothes or how many cows we have.
Marriages in the past weren't necessarily for love as now (even that's debatable given the number of devorces we have), but were often to cement an alliance or what not. If not to cement alliance the family would look for a 'higher' family to marry their daughter in to.
Social advancement would come though her. Thus you would select her male partner on things such as 'how many cows'.
It works both ways, if she is deformed it is unlikely that a higher family would take her. genetics. Youwant strong kids to carry on the blood line.
If she is of good stock (yes, we are brushing on the livestock thing here) then she is of value. Chuck in the dowry (some families saved hard to achieve this) and a son is found to marry her.
That is the important bit at this point. There is a little too much 'oh the poor, woman'. The son wasn't asked if he liked her or f he would like to marry her. That was irrelevant, just told to marry her for whatever reason. Hence we have lots of 'secret love' type arrangements where the husband or wife's 'true love' often cropped up.
And occasionally were killed f they were silly enough to get caught.
The line was important because of the link to the progeny. If the child inherited, but was then found to be from another father they could take any goods/property to another family.
In a way you can see that perhaps, like the Bobonos, the females WERE important, and power flowed via them. But for some reason they suddenly had to be protecte - lack of resources? Why else would Europe start to explore and conquer the gloe?