Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
depending upon your age and the age requirements set forth in an applicable product policy , registration may require parental consent . 

```
. OPTIONS: ['Contract by using' 'Arbitration' 'Limitation of liability'
 'Content removal' 'Unilateral termination' 'Unilateral change'
 'Jurisdiction' 'Choice of law' 'None'].