Why does everyone in Lord of the Rings have long hair?

[Pex]

Interesting aversion to this is Game of Thrones. Jon Snow and Eddard Stark have long hair, but most of the major male characters don't. This is possibly to distinguish them from the more "barbaric" characters like Khal Drogo, Shagga, and Tormund. The noble lords as a whole keep their hair pretty short.

Hmm.

I don't watch Game of Thrones, so I wouldn't have known. It is only conjecture on my part. I'm not claiming it as universal fact.