We have greater liberty in choosing our friends than we do in choosing partners for any other relationship type (Sias et al., 2008). Whether a friendship forms is determined largely by the people involved, based on their mutual desire to create such a relationship. This is different from romantic and family involvements. Consider romantic relationships. You may face substantial familial or cultural constraints in your choice of romantic partners. You may be expected (or allowed) only to date people of a certain age, gender, ethnicity, religion, or income level. You may even have a spouse chosen for you in an arranged marriage. In your family, you’re bound to others through birth, adoption, or the creation of a stepfamily. These ties are involuntary. As French poet Jacques Delille (1738–1813) put it, “Fate chooses your relations, you choose your friends.”