Despite a cultural idolatry of 20-something entrepreneurs, youth is not everything in the world of building businesses.
Jim Koch launched The Boston Beer Company out of his kitchen when he was 34. Now, the 67-year-old is still running the brewhouse behind Sam Adams beer. He's got a few more gray hairs than he had when he started the company, but he's also got a lot more tools in his toolbelt.
"One big difference is a sense of equanimity," said Koch of the difference in being an entrepreneur in his 30s versus his late 60s, in an interview with CNBC at the Iconic conference in Boston in September.