Can 2 kids use the same Nintendo Account?
Children under age 13 can only have a Nintendo Account if they are added to an existing Nintendo Account by a parent or guardian. Once you complete the registration process, you can add Nintendo Accounts for up to 5 children to your account, and manage the settings for each child that you add.
Do I need to create a separate Nintendo Account for my child?
Parents and guardians can create and manage individual Nintendo Accounts for children ages 12 and younger. This lets everyone in the family have fun earning and redeeming My Nintendo points on their own accounts, while letting you stay in control of the family group.
Can two profiles share a Nintendo Account?
If you share your console with your family, create a user for each person. (Up to 8 users can be created.)
Can my son use my Nintendo account?
If you already have a Nintendo Account: Sign in to your Nintendo Account. Select "Family Group", then "Add member", followed by "Create a child account". Next, enter information for the child who will use the account.