Coach Pete Update: Not Good on Davenport. Some on Hill and Bridgewater, Some Saints Good News also

He only pointed to it and did not make it the gist of his point but he said the adult brain is not fully formed until mid to late 20s
As most brain science if the last 10-15 years will attest

So yes a 21 yr old kid is biologically accurate
I read somewhere that it takes even longer for male brains to fully develop.