Board Thread:Administrator Noticeboard/@comment-25378948-20140902220405/@comment-5384369-20140902221004

The thing is, it's not our rule on whether you're under 13 or not.

It's Wiki's rule. Like head hancho, top dog wiki rules. The rule is called COPPA, aka The Children's Online Privacy Protection Act. It is a United States federal law designed to limit the collection of personal information from people younger than 13 years of age. It was passed in 1998 and updated and everything in 2013.

In order to comply with COPPA, Wikia requires that all users must be 13 years or older at the time they sign up for an account. During the registration process, you agree to our Terms of Use. Part of that agreement is an affirmative statement that you are 13 or older. Lying about your age during the signup process is grounds for immediate account closure and a global block from our network. This is more than a simple Wikia policy, it is a means of making sure that we comply with federal law by removing personal information when we gain knowledge of an under-aged user.

I took a lot of this information from here do if you want to, you can read into it further.