Transfer of account and age restriction

[quote user="FraG Bauer"]

So if you have entered in the wrong age, try making a new email address and setting the age to your appropriate age. When done transfer you Gamertag to the new email address. Good Luck!

[/quote]

That would only change the age of his e-mail account, not his XBL account. What you are suggesting will not work for him or anyone trying to get around a child account restriction.

Once an account is created the age can not be changed. You will have to wait until the account age reaches the appropriate age for restricted games.

Are there any age restrictions on your account?

So you can sign into your account at account.microsoft.com/family and it will allow you to set restrictions on what he can purchase as far as age restrictions and if your password would be needed to allow him to purchase things above what is restricted age
wise. if you have your credit/debit card on his account you can remove it and from the family website it will allow you to add money to his account to make purchases with and within the age restriction this way you can limit what types of games he is allowed
to purchase to age appropriate/content restricted games.

EA has age restrictions in place. If the age of the account is set wrong and it's under 13, then it won't allow you to play. There's no way to change the age on an account.