>>66336Hair styling in Rome was as subjective to fashion as it is now.
The males of the Roman empire would emulate heroic figures they saw or heard about and copy their hair. Emperors, generals, etc.
When a bold 31 year old Scipio and his volunteer army returned victorious from Carthage with completely practical shaved heads meant to keep them cool, the male populace of Rome saw and began shaving their heads to ape them.
Italy isn't a hot enough place to warrant the effort of biccing your head regularly, but they did it. It was purely a fashion statement.
Beards were meant to be grown as a sign of mourning, but even that wasn't a hard and fast rule.