The entire ecosystem in which we all dwell seems to promote it as some kind of holy grail that we become "successful" by our mid-20s. However, there is SO much

The entire ecosystem in which we all dwell seems to promote it as some kind of holy grail that we become "successful" by our mid-20s. However, there is SO much that one cannot know at that age. Is there any data on the ages of YC and other startup incubator attendees?