[ruricolist]

I'll mention the recent Second Act as an excellent survey of the phenomenon of the late bloomer: https://www.henry-oliver.co.uk/home.

[esperent]

A book surveying late bloomers does sound interesting.

However, this is packaged as a self help book, which probably sells more but doesn't interest me at all.

https://www.goodreads.com/book/show/201064797-second-act