Only players 16 years of age or older can link their account to an Apple Account or a Google Account.
In addition, only iOS devices can be linked to an Apple Account.
Players under 16 years old can only link to a Nintendo Account.
Note: Players that just turned 16 years of age will not be able to link their account with an Apple Account or a Google Account until the month after their 16th birthday. We ask for your understanding in advance.
Note: Age restrictions may differ depending on your country or region.