I don't think many middle-aged people complaining about 'music these days' are really talking about adult content, so much as lousy quality.
Haven
Topic
01:32:46 AM Jul 19th 2010
Cut the Simpsons; Mr. Burns is a non-example as the absurdity of his age is pretty much a constant. Disco Stu similarly runs on Rule of Funny.
Even if The Simpsons stays on the air for another 50 years, Mr. Burns will never be too young to have experienced the crash of 1929.
Mister Burns has been pictured "terrorizing children in this 1850's woodcut", so it's no problem. He's functionally immortal, anyway.
Considering that Disco "died" circa 1980, Disco Stu must actually now be a Disco revivalist rather than a literal Disco Dan from The '70s (assuming he's approximately the same age as Homer).