Young Dark Blonde Girl With Green Eyes Posing In The Nature

Aboriginal Australians, especially in the west-central parts of the continent, have a high frequency of natural blond-to-brown hair, with as many as 90–100% of children having blond hair in some areas. The trait among Indigenous Australians is primarily associated with children and women and the hair turns more often to a darker brown color, rather than black, as they age. Blondness is also found in some other parts of the South Pacific such as the Solomon Islands, Vanuatu, and Fiji. Again there are higher incidences in children but many adults too carry this indigenous blond mutation. Blondness was also reported among Indigenous peoples in South America known as Cloud People. There can be blond hair among Peruvian mestizos of mixed Cloud People and Spanish and/or other European descent.
Relation to age
Blond hair is most common in Caucasian infants and children, so much so that the term "baby blond" is often used for very light colored hair. Babies may be born with blond hair even among groups where adults rarely have blond hair, although such natal hair usually falls out quickly. Blond hair tends to turn darker with age, and many children's blond hair turns light, medium, or dark brown or black before or during their adult years.