Startup CEO

In Silicon Valley, the founders with a successful exit in this data set had an average age at founding, of… 47!

https://digitopoly.org/2017/07/17/the-young-entrepreneur-myth/

That’s because one key role of a startup CEO is to remove all the risks that can be managed; which takes experience of living with the consequences of ignoring risks. The other risks are outside human control. Controlling the manageable risks improves the average result; a large data set shows this result as regression to the mean.

It peaks at 47 because after a certain age most people lose the energy and the interest, quite rationally.