Want to watch R-rated movies?

Well you can't make them understand but try to explain to them that you believe you are old enough now to watch certain R movies and that in reality there is already violence, language, , drug use, etc. on t.v... And tell them at least you are not going behind their back and watching these movies... instead you are talking to them about it which shows maturity... Also try helping around the house more or something like that...