Last week, I spoke with an elderly couple. They’re both in the sixties now, but when they married each other, he was seventeen and she was eighteen. Sounds crazy, right? Furthermore, they were both virgins when they put the rings on each other’s fingers. A situation like this is nearly unheard of today—especially for millennials. On college campuses across America, casual sex has become the norm, and long-term relationships and marriage are generally regarded as an endeavor to undertake far in the future.