I mentioned this in the last thread here, but due to COPPA, generally it is illegal for businesses operating in the US to collect data on children under 13, even if you ask (there are exceptions but usually you need to prove that you have the parents' permission). They are doing what is required by the law, and in fact it was probably already illegal for children under 13 to use the product in ways that could generate personal data. So nothing has really changed, it seems they are only explaining what the situation already was.