>>15488145>Hadrian, who you seem to think was posterior What are you talking about? The point is it took until the 2nd century before beards even became a thing in Roman society, and they were still not even ubiquitous. Shaving was considered a sign of manhood (and you became a man when you first shaved), not the growing of a beard itself.
Late Roman emperors are depicted without beards, I should add.