M.K.
I got my girls done at 8 months and 4 months. It was a lot harder to do it with the 8 month old, wiggly. My friend 'tried' to get her daughter's done at 4 years. They got one ear done and the girl wanted nothing to do with the second one. Once you get to the age where pain is exaggerated, I'd hold off until they can have more of a decision and can want it more than they fear the needle. I went in before getting my first girl done and had them do mine so I could remember how it felt before allowing them to do my dd (it was second holes). I waited for immunizations before doing my girls'. There is the problem of the lobes being really small and placement, so definately see if you can find someone experienced with really little ones. They get them really even when they're tiny, no moving!