Once kids reach a certain age the genders are rigidly separated (with the burka, and adjusted living arrangements). My parents are first cousins. And indeed th

Once kids reach a certain age the genders are rigidly separated (with the burka, and adjusted living arrangements). My parents are first cousins. And indeed they grew up together. But they didn't get married because they didn't have other options beyond cousins. That part doesn't ring true to my larger family's history with cousin marriages(sample size: 3 cousin marriages). There are so many myths about the harms of cousin marriages, starting with the medical risks. But study after study have shown there is little truth to any of it.