I’m mostly curious about why the maturity period was prolonged by 5-10 years from what the human race had 100 or 1000 years ago. I’m not talking about education but the transition from youths to adulthood.
Also, maybe it is wrong to disenfranchise immature people. They are people, too.
My impression was that infant mortality was a great deal higher back then, but there wasn’t as big a disparity after that as people tend to assume. People didn’t hit old age in their 50s and 60s, they often lived into their 80s and beyond, just like today.