Hairdo was common man's crownLooking back into history we see men with funny hats and crowns. It is actually pretty jarring that the classical Indian crown that we see in movies and serials isnt seen much while excavating. Possibly because no one has been wearing those fancy crowns since last thousand years as Muslim rulers took over. Even later Hindu kings like Sri Krishna Devraya only wore a clothed turban most times, even when Vijayanagar was filled with gold. Crowns are not that widely seen. And that goes for the whole world. Instead people used artifacts to accentuate their hairstyle.
The art of styling one's hair is a pretty old custom. Everyone did it. Hairstyles were seen as a way to distinguish people. We can see that in Brahmin queue hairstyle, where a tail is given to an otherwise bald head. Similar thing was seen among Machus. Before Machus, almost everyone in China sported buns. We can see the nobles distinguishing themselves from working glass through long puffy wigs in Victorian era. African tribes either went bald or sported dreadlocks.
In all above examples we see how common people used their hairstyle and accessories to distinguish themselves from downtrodden working class. One's with no hairstyle were considered barbaric and nomadic.