Thanks again everyone for your replies. I just want to add for the record that I have nothing against tattoo's -- but in the case of my son, his are absolutely vulgar. Without going into details, as I know if I did alot of you would shudder, but he has one from his shoulder down to his elbow that depicts a death scene. It is horrifying! It is not pretty. Those are the kind of tattoos that I am against.
As far as piercings, I don't mind if they are done is good taste. Like in the ear region, eyebrow (I actually like them!), but with my son, he has a bar through the top of his nose (like right under the eyes), piercings in both nostrils, about 5 piercings through the lips....and then about 15 in his chin area. Now to me, that is a little bit too much and not attractive looking at all! And then he wears his hair mohawk style, and that goes from red, to pink, to green.....
But not my problem. I just worry about what the future holds for him (i.e., job).
I do appreciate everyone's comments though to this posting.