response: Yes, the main reasons would be for cosmetic, cover white or gray hair, fashion, restore one's original hair color, or for sun bleaching.
original_response: main reason people color their hair is to cover grey or white hair
history: Hai Hair coloring changes your hair color. Yes, but do you know why people do it?
knowledge: The main reasons for this are cosmetic: to cover gray or white hair, to change to a color regarded as more fashionable or desirable, to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.