[Gatalis]

Considering we have tattoo artists who will shave your head, I'd imagine having no hair is fine pre-red wizard tier.

Actually, for that matter, I don't really see a problem with Red Wizards not being bald, it would just not be in their favor since they'd stand out (bigger target for other Reds/not blending with Thayan culture), and wouldn't be able to augment their face with tattoos (perhaps the more important issue since Reds are generally paranoid of assassins and junk).

I wouldn't know the official policy though :P