The idea that most successful startup founders are in their twenties is a myth — the average entrepreneur is much older

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• A study by MIT found that the average age of startup founders is around 42, and the average age of entrepreneurs who founded high-growth companies is 45.
• The study also found that 20-something founders have the lowest likelihood of starting a company with a successful exit.

Mark Zuckerberg was 19 when he started Facebook from his Harvard dorm room. Steve Jobs was 21 when he launched Apple Computer from his family's garage. David Karp...