 Proponents of the contractualization, or privatization, of marriage have argued that marriage should be brought further into line with the contractual paradigm. A default assumption for some liberals, as for libertarians, is that competent adults should be legally permitted to choose the terms of their interaction. In a society characterized by freedom of contract, restrictions on entry to or exit from marriage, or the content of its legal obligations, appear to be an illiberal anomaly. Full contractualization would imply that there should be no law of marriage at all—marriage officiation would be left to religions or private organizations, with the state enforcing whatever private contracts individuals make and otherwise not interfering (Vanderheiden 1999, Sunstein and Thaler 2008, Chartier 2016; for a critique of contractualization, see Chambers 2016). The many legal implications of marriage for benefit entitlements, inheritance, taxation, and so on, can also be seen as a form of state interference in private choice. By conferring these benefits, as well as merely recognizing marriage as a legal status, the state encourages the relationships thereby formalized (Waldron 1988–89,  1149–1152).[2]