Thanks for posting, but I'm not looking to Sen. Sasse to define "adulthood". Ben's credibility was further diminished by not reacting stronger on the Bill Maher show. He went on to promote his book, nothing more.
We're having that discussion in our household. My son just turned 28, is gainfully employed, and is going back to school to complete his degree. BTW, he's also back living at home.
During his free time, he plays quite a bit of video games, which drives my wife up a wall. LOL, she takes it out on me, for setting a bad example...my "addiction" is the Civilization series of games, which I play often while watching TV. My 15 YO son is a typical teenager, who likes Madden and other games. His grades are A-, is now the Senior Patrol Leader of his Boy Scout troop, and was a state finalist in Trumpet.
As long as my grades were good, and stayed out of trouble, my parents gave me plenty of latitude. I made my spending money keeping score at the local bowling alley, and did well enough in school to earn an Army ROTC 4-year scholarship.
My wife's mother, out of necessity, made Attila look like a Boy Scout...she and my FIL raised ten kids, all graduated from HS, and most have college degrees.
She feels she made too many mistakes with our two older children, who are now 30 and 28, and she's determined to make up for it with the 15 YO.
She's now working on the 28 YO, for him to "get serious" about his life. I've told him I'm not going to get in the middle of that discussion, but leave it to his judgment when to settle down. Everyone's got their own time clock...I didn't get married until I was 33, I had the chance to experience life before "settling down".
My 30 YO daughter has a 6 YO son, and she and the father work hard to be civil to each other, as my grandson splits time with the two: one week with her, one week with him. Nana (my wife) and her family have never had to "share" grandkids, as my parents were 2000 miles away, and my family was much smaller. Tensions rise around certain times of the year, when the schedule is not in our favor, such as holidays, Halloween, etc.
Apologies for the rant, but I think it ties into the thread topic. Today's world is far different than the times I grew up, for better and worse. The Senator's book is well intentioned, but he's not exactly showing the leadership we need in DC.