How do I change my incorrect age on Apple Account?

Hello~ Well… that could be an issue. Try clicking on below…

Update the birth date associated with your Apple Account - Apple Support

~Katana-San~

You need to contact Apple Support to change your age and do a verification.

If you’re in the US please call  1-800-MY-APPLE or outside the US, consult the support articles below.

Contact Apple for support and service - Apple Support

Official Apple Support