User blog comment:Semanticdrifter/Updates to COPPA/@comment-24.10.18.199-20130721075936/@comment-413936-20130723020416

And due to US laws regarding the collection of personal information of children under 13, Wikia would be liable for collecting info on Wikis that could be considered to be directed at children. As account creation spells out (fairly plainly) that only those 13+ may create an account, requiring account creation means that Wikia would be compliant with the law. Any under-13 who broke this part of the terms of use would then be at fault as the one who broke contract if my understanding of legal contracts is up-to-date.