 Indeed, as the existence of intentionally childless married couples suggests, marriage has purposes other than child-rearing—notably, fostering a committed relationship (Mohr 2005, Wellington 1995, Wedgwood 1999). This point suggests a second defense of same-sex marriage: exclusive marital commitments are goods which the state should promote amongst same-sex as well as opposite-sex couples (Macedo 1995). As noted above, such rationales come into tension with liberal neutrality; further controversy regarding them will be discussed below (5.2).