No that is definitely untrue. Reeves were not marked out specially in any way and needed no such emblem.
Some modern writers on this forum claim that reeves "carried a horn" (meaning a cow horn) but this is not true either; perhaps this has led to the false idea that reeves "wore horns".
Shepherds certainly carried cow horns that were used for signalling, but reeves were not shepherds.
they wore robes
I think Wiccan priests do.
Many ancient Celts wore horned helmets.
Your question assumes that reeves wore a cow horn, which is a totally false premise.
Yes, it is true that peasants and royalty had distinct hairstyles during medieval times. Royalty often sported elaborate hairstyles adorned with accessories, reflecting their wealth and status, while peasants typically wore simpler, practical styles that were easier to maintain. The differences in hairstyles were not just a matter of fashion; they also symbolized social hierarchy and class distinctions in medieval society.
They wore clothes
they wore dark clothing
They wore fluffy bunny outfits and unicorn horns on their head for combat.
The medieval Japanese emperor's wore expensive robes.
Girls wore dresses
they wore aprons for work
Horns represented royalty. Eventually became replaced with crowns. Many Greek, Egyptian and Mesopotamian Gods wore horns to represent the Ram. The Aries constellation of the "Ram" is the "beginning" of all 12 constellations.