"common" seems erroneously high there. For any given household with a stay at home parent, the working parent's lifetime risk of dying in a car accident is less than 1 in 100. The risk that they'll do it in the years working to provide for the household is likely less than 1 in 200. Meanwhile, the risk to divorce is around 2 orders of magnitude higher. (I'd agree that "divorce is common"; something that happens about 1% as often, I don't think of is common.)