I would consider it older... it comes down to how quickly does each individual grows up. I think the wisdom teeth are a good paremeter to gauge/compare many individuals together.
people's brains, specifically male brains get to full adulthood around 22-25; iirc women get there a couple of years earlier.
people's brains, specifically male brains get to full adulthood around 22-25; iirc women get there a couple of years earlier.