Two billionaires cannot legally drink in the U.S.
While the average billionaire is roughly 67 years old, in 2016, there are more younger billionaires (66 under the age of 40, according to Forbes) than ever before. The two youngest billionaires — sisters from Norway — are just 19 (Alexandra Andresen) and 20 (Katharine Andresen), below the legal drinking age in America (lucky for them, they won’t have this problem in Norway). They became billionaires recently, when their dad, Johan, transferred to each of them a 42% ownership in the family investment firm, Ferd.