Fear of Missing Out (FOMO) is a huge part of the Millennial psyche. But while that extends to everything that goes down on social media, this generation doesn’t seem to be worried about missing out on retirement funds. Millennials—or Generation Y—are today’s late teens and twenty-somethings born in the 80s and 90s, and they number some 80 million people in the United States. And because FOMO is the Millennial common denominator, the financial detours are numerous. Thanks to the meteoric rise of social media advertising, Millennials have endless options for spending money, and they account for an estimated $1.3 trillion...