Great idea and good question, here's the problem everyone and anyone teaching classes on this topic runs into.
Even if you teach a guy the right way to do things, after he leaves he can flash his certification and then do hack work with lousy products. This makes the company that awarded the certification look bad.
That's why at Meguiar's and now here at Autogeek we award a,
Certificate of Completion
That means you were here, attended the class and completed it.
Also, as I'm sure others will bring up, there are so many products, pads, tools and techniques to reach the goal, (a clean shiny car), and for the most part all the different approaches "can" work.
That is there is no right or wrong way to approach getting a car clean and shiny if the end results is a professional job that pleases the customer.
The problem lies with people that do lousy work which I explain in detail in this article,
The story of 3 H's - Horrendous, Horror Story and Hack Detailers...
I'm all for the idea though... now figuring out a way to accomplish the goal.
For what it's worth, I helped out a guy via e-mail today that bought a brand new Infinity from an Infinity dealership and the paint was a wreck when he picked up the car. He sent me at least a dozen pictures.
Shouldn't the detailer at a Infinity Dealership be qualified to "touch" the paint on a brand new Infinity without ruining it for the customer? Again, read through the article above, I spent a lot of time writing it to explain the problems
without carelessly blaming everyone in this industry for doing hack work.