One cannot discuss the MPAA without discussing the American mindset, which, if anything, is admirable both in its foresight and lust for civil disobedience. Look at the Bill of Rights: aern't people guarenteed the "pursuit of happiness?" If I wish to pursue my happiness by watching a an NC-17, but I am 16 years old, then you have a conflict of the direst kind. Of course, the MPAA is not subject to said article of the constitution, as are not 14 year olds who wish to smoke, and 20 year olds who wish to drink. The Constitution is the greatest peice of practical literature ever written, but Ageism is not addressed at all.
Both in my own country and everywhere else I have been, there is a fundamental recognition of "minors" as being intellectually inferior, which is plain nonsense. The R-rating should be the top, because, if a parent wishes to take a child to an NC-17, and the MPAA's rules do not allow that parent to make the desicision for their own child, then it is a bastard of an organization, and people should not submit to the ghastly rating.