Two real, independently sourced datasets ask the same question -- who's the entrepreneur -- and land in opposite places. The Global Entrepreneurship Monitor's annual survey now shows 18-24 year-olds tied for the highest business-formation rate it has ever recorded: 25%, a reversal of the 25-44 age bands that led every year from 1999 to 2021. A 2018 NBER study, built from Census and IRS administrative records rather than survey responses, shows the opposite pattern in outcomes: among the top 0.1% of startups by growth, the average founder was 45 when they started. A 50-year-old founder is 1.8x more likely to hit that tier than a 30-year-old. Founders who reach a successful exit average 46.7.
These aren't in tension -- they're measuring different stages. GEM counts every attempt; NBER only sees the outcomes of attempts already made. Younger people are starting more things right now. The people most likely to be among the small number who build something that scales have historically skewed a full generation older. A credentialed founder pitching you at 52 isn't an outlier against either dataset -- they're sitting on the exact curve the outcome data has favored for years, one most participation-side coverage doesn't mention.
Sources and further reading: "Research: The Average Age of a Successful Startup Founder Is 45" (Harvard Business Review) · Azoulay, Jones, Kim & Miranda, "Age and High-Growth Entrepreneurship" (NBER Working Paper) · Global Entrepreneurship Monitor. Full version: "Two curves, one word" on our research site.