Yes, I see the parallel analogy in regard to people changing their habits, or else not being able or willing to do so. ( I know that if someone wanted me to curb my own chocolate addiction, they could take a flying leap !! )
What I (and we all should ) expect from ALL industries, not just the automotive industry, is to CHANGE WITH THE TIMES at hand when circumstances demand it!!!
The current EPA MPG test was created in a bygone era, and updated ONCE in about 40 years. That's not staying with the times.
I agree with your idea to have EPA post "high and low" numbers instead of City and Highway - THAT is an idea with contemporary intent, i.e. helping bring the data into this millenium. People today do a lot of mixed hwy and city driving - much more than in the past.
I would still have bought my Hybrid if the EPA numbers on the sticker had been "34 and 62" for a low and a high range. Being an optomist, I would have said, "YES I'm going for the 62 !!" I fear that some people might EXPECT to get 62, and STILL get upset when they got less, however....Human Nature maybe?
Anyway, we just all should do what we can to get the most MPG out of our car depending on the driving we must do, not only to save the air and reduce consumption and save money, but just because it's the right thing to do...
My2Cents Again...........