I wonder the same thing however this has been a sensitive subject in here before. My personal opinion is that if it's just for appearances (ie not cultural or religious reasons) then i think it's a bit risky. Babies tug at their ears without thinking of the damage they could do. Also putting the earrings in and out all the time would be risky... my babies don't sit still for putting shoes on let alone something that could tear flesh if yanked away quickly eeek! And the risk of infection would be a concern. Kids fling dirt and all manner of bodily substances often get smeared from ear to ear... germs could easily cause infection if not careful. Anyhow, when I see a baby with pierced ears i generally wince but that's just me. I'm sure many people think it's pretty but I just think it's pretty risky. JMO.