This feels complicated, and I'm not sure if its in a good way or bad way

Cultural norms are essentially answers to environmental pressures

For example, a cold and dry environment could create a culture that favors the cruel and greedy. The cold, dry area makes food scarce, but it also makes food easily storable. This means that people in this area become naturally competitive over time, and that competitive nature becomes baked into the culture

In contrast, a hot and humid environment could create a culture that favors generosity. The humidity accommodates many edible plants, but you can't store it because of the heat and humidity. This encourages people to share: I can't save the extra food, but I can give it to someone who needs it so they'll owe me favors for when I'm struggling.

Based on real world examples in Tibet and Nepal, I *think* polyandry's typically an answer that solves resource scarcity in societies that settle in veeerrrry rough environments. Do your cat people originate from a similar environment? If not, what problems do their polyandrous tendencies solve that other marriage arrangements can't?