A quick search showed the Infographics Show just did one on “Why are you an adult at 18?” which I’m watching now.
This isn’t an answer but as they’re usually pretty good at basic information, I’m finding it a refresher for “how did we get here again?”
Research I did (on my own, out of curiosity, using Google’s search results counters as guide), I wanted to find out which age is LEAST discriminated against.
I used “acting like a __ year old” as my guide.
The one with the least samples in results? 27.
So from an informal crowd-sourced / google filtered perspective,
“An Adult Is 27 Years Old”
At least in 2014 when I did this…
Not a perfect answer but I wanted a sense of “what’s not being said” by looking for what was missing.