If some 11-year-old decided that he or she wanted to sign up for a service at an organization that's clearly directing its activities towards adults—for whatever reason there are no parental controls on the computer or there's not proper supervision for the kid—I think it's ridiculous to assume that organization would somehow be able to know that. I don't know how you would possibly do that.
On March 10th, 2015. See this statement in context.