When I first joined the game, I also found this a bit strange as well. Most of the characters that I used were felines, so I found no real reason to use a mane/hair (unless using a male lion.) I suppose with a canine, the "hair" would make more sense because some dogs and wolves have shaggier fur, yet it took me a while to realize that the game had some sparks of creativity and not everything was realistic, in the sense of creating a character identical to how a species would look in the wild. (Not to mention that some people portray their characters as species that do have hair, like humans.) I think it's nice to see users get imaginative with their characters, and I don't see why not if they've been given the tools to do so. Manes are fun, but all characters don't need them to make them look unique. c: