Second post of comments on (updated) data on 600 (former) startups, about (what I think) are interesting or intriguing results.
After venture capital in the first post, here are elements about founders.
The 600 startups gave me data about 1016 founders, al though there is an average of 2.3 founders per startup. I did not have the age of all of them, neither their role or ownership. The average age is 37.9, the median is 36. (This is age at foundation, I added this after a comment I received on April 9, 2020).
The following figures show some striking results about the age related to fields: founders are much older in the health-related fields, much younger in digital technnologies. It is more than 45 in biotech and 43 in medtech in comparison to 33 in software and Internet.