Thread:Ripto22475/@comment-27193991-20160806134338/@comment--20160806221243

Per above, you would send that to Staff through Special:Contact if you wanted to. You are under no obligation to report underaged users though. So reporting is of your own free will.

And like Tupka pointed out, you need a link to your evidence where they say they are under 13 if you end up sending that in.