Long hair is the symbol of warriors.

Have you watched the movie "prey"?
The movie is one of the predator franchises.

This movie was way better than I expected.
I had not watched this kinda entertainment for a while.

Also, you can see lots of guys with long hair and braids.
I am proud of my long hair more than ever since I watched that movie.

I believe long hair is the symbol of warriors. So was samurai.