As of July 25, 2017, you must be 18 or older to access Coinbase services.
All underage Coinbase users who opened accounts under our old policy will be notified of this change and will be given ample opportunity to remove funds from their accounts before the accounts are closed.
Old Policy (for reference)
|Account holder age
|18 or older||Eligible|
|At least 13||Eligible with parental consent|