It is a genetic from your family but also it is a gift from god
Most Finnish people have brown hair.
They usually have a dirty blonde kind of type, but it depends if they live in southern France or northern France
Because they inherit it from their family
first of all... it's "their" not there.. and they color their hair cuz they are bored, want to look cool, or etc.Another reason, is because we don“t like gray hairs...