Warren Buffett's paper route

I recently read an article in Vanity Fair about Warren Buffett.  I usually leave those to my boyfriend, but this one intrigued me.  Buffet says in the article that he's a big believer in a study that had looked at trying to identify what made certain entrepreneurs more successful than others.  The study looked at factors like education, network, and experience.  

The only factor that showed any correlation at all with the entrepreneurs' success, across the board, was the age they were when they started their first venture.  Warren was 11.  

If you haven’t done it yet, maybe this is your year?