How do you download rated mature demos on xbox live if you are younger than 18?

i am 15 and i put my real age on xbox live and it wont let me download mature demos, i have the parents password to change the settings because my parents dont care, please helpHow do you download rated mature demos on xbox live if you are younger than 18?Yep, step #1 is to not put your real age in.How do you download rated mature demos on xbox live if you are younger than 18?um youd have to make a new username and put that your 18 its the only way