[header] How to get your parents to let you go to an anime con [title] Be aware of your parents' knowledge of conventions. [step] Do your parents know what a convention is? Do they have the wrong idea? Perhaps they've seen something like it on tv, and they might think it's a festival of women wearing skimpy outfits and men wearing tights. Tell your parents exactly what a convention is if they don't already know. 
Make sure they don't have the wrong idea! [title] Be mature. [step] Just as with asking for anything else, be mature with your parents.