From a reader:

Along the lines of your last post, in the 2nd Treatise on Government, Locke suggested that marriage be a contract irrevocable until the youngest child of the marriage is of age. In light of recent studies suggesting that a bad marriage (sans abuse) is better than the best divorce for children, maybe Locke’s suggestion would both improve the lot of children, simplify child support issues, and make people think twice before either marrying or having kids.