I have none of them and agree they are awful things. Can't understand why people would want to do it really. Unless of course, they are just emulating their idols, Robbie Williams springs to mind, full of the them.
Some of these kids are going to really regret this in later life and I would urge anyone considering it to think long and hard first and hopefully say NO.
This is not like other fads or fashions, it is more or less permanant disfigurement, removal is not easy and often not 100%.