Who you ask?
Eric Finman, he bet his parents he could become a millionaire by the time he was 18 and if he did they would not make him go to college. The kid bought bitcoin when he was 12 in 2011 with some money that was gifted to him from his grandmother.
Then he sold the bitcoin in 2013 to start an online education website. After a short while he was given an offer to sell the business for $100,000 or 300 bitcoin. Like a boss, he accepted the 300 bitcoin. And now with the rise of crypto-currency prices he is now worth over $1,000,000. He did not finish high school or complete his GED. Pretty darn cool. We will probably be seeing more from this one in the future.
Source: http://www.coinspeaker.com/2017/06/21/meet-erik-finman-18-year-old-bitcoin-millionaire/