What happens when my child turns 13 years old? When your child reaches the age of 13, they will be eligible to apply for the Teen Checking account. Their Alliant Kids Savings Account will remain as a savings account, and any funds in the account will remain in the account unless or until they withdraw or transfer them. The only change is that they will also have the option of applying for an Alliant Teen Checking Account. If they do open a checking account, they will then have a debit card that enables them to access both their savings and checking accounts, so that they can easily transfer funds between the accounts.