Your neckline must be two finger lengths from your collarbone. You can’t watch that movie. Your shorts are too short. You shouldn’t date. Sound familiar? Like many of you, I grew up in The Purity Movement of the 1990s and early 2000s. To be honest, purity seemed kind of cool at the time. There were giant conferences promoting it, teen pop stars modeling abstinence, and parents buying their daughters fancy rings if they committed to saving sex for marriage. You could even say that purity was popular.