My friend's little girl had hers done at a few weeks old & she also wears 2 necklaces & a bracelet every day.

I would prefer not to have my daughter's ears pierced until they ask (if I have one) and I won't be allowing Zander to have his done as I don't like them in boys. But that's just me & if you want to have your bub's ears pierced at a young age then go for it.