Maybe it is so persistent because it was started by
this Kodak technical publication.
Let's read it together...
"Kodak builds a small manufacturing bias into films for general picture-taking to compensate for changes produced by typical storage conditions and delays between purchase and processing."
This does not imply that amateur films are
meant to be aged. It means that amateur films are designed with wider tolerances, bearing in mind that they are likely to sit on shelves and be mishandled. It's like putting citric acid in a can of grape juice: it's a preserver against aging, but it does not
require you to age the juice before drinking it.
Cf.
http://www.apug.org/forums/forum40/...ween-kodachrome-pkr-kr-film-2.html#post416259 for a few more details.
Professional films, as Kodak says "are close to optimum color balance when they are manufactured and packaged." That means that there is a stringent QC process on color film, and that all other things being equal, they will give very consistent results when properly handled. That's probably the most misunderstood statement. When reading it, people immediately make the (wrong) deduction that amateur films are not close to optimum color balance when packaged.
It's like the difference between a fancy Japanese knife made with rare carbon steel blade that needs constant attention to give outstanding results, and an ordinary knife that will cut an onion regardless of whether you used it for gyproc before. The Japanese knife will help you carve a chrysantemum out of a radish; the ordinary knife is cheap and just works.
Finally, "ripening" is the name of a process during silver gelatin emulsion making (google it). When the emulsion is coated, you can be sure the emulsion is ripened enough and meant to be stable. How would you ever control "ripening on the shelf" ?
Please kindly show me the passage where Kodak says we need to age amateur films before using it.
EDIT: Yeah, I don't know how to read either.