In the Chinese Huangluo Yao, female members of the Yao people are very particular about their hair. Yao tradition dictates that women can only receive one hair cut in their lifetime, usually at the age of 18, to symbolise the woman’s coming of age. What's more Yao ladies who are not yet married are not allowed to show their hair to men, so they must wear a scarf to cover it. In fact, the tradition states that the first man to see a Yao woman's hair must be her husband.