There are many people in our current society who think that one's choice to color their hair, paint their nails, have tattoos in places that are visible, or have piercings makes them less professional and therefore less valuable to hire. This is complete crap for many reasons.
The way a person's body looks is not an indication of their work ethic.
A person's outward appearance is not an indication of their worth ethic, their intelligence, or their ability to perform their job duties. The assumption that vividly colored hair, dark or bright nail polish, number of tattoos, or locations of piercings is indicative of the way someone works is simply wrong. I've had purple, red, blue, and natural colored hair, but my intelligence hasn't wavered. My nose ring and bigger ear piercings do not speak for the amount of effort I put in to my job. The idea that I have a tattoo does not affect my ability to complete things on time. These misconceptions are as crazy as if saying someone who wears contacts opposed to glasses are less able to do their jobs. It is a choice to wear contacts, just as it is a choice to have a tattoo, to enhance your appearance.
A person's appearance should not decide their employ-ability.
Frankly, it is a discriminatory practice to hire someone over another individual because they have a more conventional style. This style is usually diminished through workplace rules and regulations on dress. The tattoos can be covered if it is really that essential to preserve a tattoo free environment at work, but to discriminate against a person because they have a piercing that can be taken out, a nail style that can be changed or a hair color that can be changed, is just wrong.
You don't want to be judged on the way you look, so why is it your job to judge someone on their appearance?
Who died and made you the appearance police? Are you going to judge everyone based on your first instinct from now on, because that is pretty childish. The fact of the matter is, we are becoming more and more interested in body modifications as time goes on. More and more young adults have tattoos, piercings, or other modifications on their appearance, and they're not afraid to admit it! Our society has become more accepting in people expressing themselves in a way that lets their creativity flow!
In the past, tattoos and piercings were more of a taboo and therefore, many felt the need to hide theirs. As body modification is becoming more accepted culturally, hiding is still expected by some, but shouldn't be enforced in the public anymore.