Are you in your twenties, or thirties, or forties, and don't feel like an adult yet?
Do have a strange impluse to study a bunch of different unrelated fields, and feel like your education is incomplete until you do?
Do you feel a compulsion to go on extended walkabout in foreign cultures? And don't know how to explain it to the folks who just want you to settle down already?
Would you like an excuse to spend the next ten years in grad school, studying something completely new?
Then I may have the book for you!
Why It Takes Ten Extra Years To Grow Up is about how new cognitive development occuring worldwide (chaos, complexity, emergence) is pushing the age of true adulthood even higher then ever, just as a shift to literacy added a decade to growing up back at the beginning of the Classical Era (whenever that was for your particular culture).
Unfortunately I don't have a publisher yet, so you can't get this in bookstores right now, but I have been known to let people who ask nicely (especially autistic people, because I'm biased that way) read a copy, in exchange for feedback.
And I'm not kidding about the grad school. My hope is that this work will be the starting point for hordes of research on cognitive, social and moral development beyond formal and postformal operations. Let the fun begin!