I kinda wish I had mine pierced as a baby. As soon as I went into middle school I LOVED tattoos and piercings, but didn't have ANY. Not even lobes. My mom is a little anti-body mods. When my dad took me and my sister to Las Vegas when I was 16 he let me get my ears pierced down there. My mom was okay with that. Now I'm 19 and can get tattoos and piercings on my own... heh heh... my mom wasn't too thrilled at first, but she's okay with them now.
So, obviously, I think it's okay to get a baby's ear pierced as a baby. If the kid doesn't like them when it gets older, he/he can always take them out.