"You are an adult person, you should not look like a rebelling teenager!"
I hate to say it but it's the potential reactions to going sly that have kept me from doing it, so far. When I had my hair taken from a faux hawk to a # 1.5 buzz, people went NUTS with negative comments.
Tell the family that you shaved your head in preparation for getting it tattooed. Then ask them what tattoo they think would look better on your head; Rolling Stones Lips, the ZZ Top logo or a portrait of Lady Ga Ga?