These seemed more like social contracts. I’m not disagreeing but I see it a little different. When I watch weddings, especially eastern weddings, they are very clearly ritualistic traditions that have been passed down. They put these fancy dresses on and do these specific dances in front of the couple. It’s literally like the tribe is all coming together and acknowledging that only Peter gets to fuck Susan. We do this to keep peace in the tribe because all the men were killing each other over the women. So now instead of having one alpha get all the women, like in the animal kingdom, we have this marriage contract.