I have a friend who got her little girls ears pierced due to the fact everyone always asked "girl" or "boy", she figured that way no one would get it wrong. So that's another reason some people may do it. I had to wait til my 10th Birthday for my ears to be pierced & I went mental waiting, as my sister was 4yrs older & had hers done. I remember thinking I would get my daughters done at 3months if I had one. Though I have a DS, but still think if I had a girl I would get them done. I don't think I need to go out & buy heaps of different earings & match outfits....I don't even do that myself. I have one really good white gold pair that I wear everyday.....I only change when it's a special occasion ex wedding. Just a nice pair of studs that would be worn all the time.
I also know several little girls where I live with braclets....as they make them here at the local shop & they are beautiful & I think they look really sweet. You don't have to go over the top but I suppose I like the girly things & would like that for my little girl also. I often think "shame you can't do that for a little boy"...I wanted to get DS ear pierced but DH says we should let him make his own choice later (end of subject LOL).
I guess it's just another one of those, "everybody has a different idea" subject.