You can now update an incorrect birth date associated with your kid’s Apple ID. Details are in this Apple support article.
Your kids with wrong birthdates on their Apple ID accounts can now change them for #familysharing for Mac and #ios8. https://t.co/0mXBxyjzZn
— Chris Espinosa (@cdespinosa) March 6, 2015
[h/t Jodie Buckler]