"Natural" Modification

Today's discussion left me thinking about what is acceptable in our society in the terms of body modification. Jeff made the point that everyone undergoes body modification.  I think this is absolutely true.  Women and hair color I think can relate to the tattoo debate we had today.  Women constantly change hair color and it's not seen as rebellious or deviant so long as it is a naturally occurring color.  If a women colors her hair blond, she is not seen as distracting or breaking a social norm.  But if a women colors her hair with an unnatural color such as purple, or blue, she is viewed as having an attitude, much like individuals with tattoos on their bodies.  Plastic surgery is the same way.  If the plastic surgery is performed that still keeps people within the social construct of a 'natural' person it is okay.  Tattoos changed the outward appearance to something that does not happen naturally.  This is why I think that tattoos are distracting to some people.  The eye is drawn to what does not look natural.  Eventually, when people are around those with tattoos long enough, it becomes natural, but we do not have the ability to do that with everyone that has a tattoo.  It just seems as though to appease society, we can only change our bodies in ways that would be found in nature.