I would reread the chart. Time with friends and time with partner stays the same through 60. You just don’t work as much, and your kids move out. It doesn’t seem so tragic to me.
This by the way would solve a lot of societal problems we have, including health care, mental health, financial problems, parental care to name a few.
"A few Americans, but very few, still have extended families. The Navahos. The Kennedys."
https://www.goodreads.com/quotes/300997-ok-now-let-s-have-so...