Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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also , we will not ask the child for any personal data beyond e-mail addresses without obtaining prior parental consent . 

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