I find some of the things on here hard to believe, why would anyone put their dog through the pain of having it done just because they think its 'cute'
When people tatoo a dog it is for an identification number, not to look cute. Microchipping is the same.
I do not agree with piercing babies/young childrens ears either though, not until they are an age where they can make their own decision about it.
But then again I do not agree with tail docking, ear clipping, or any of the other things people do to permanently alter their dog for the sake of appearance.
Just my opinion.