Great article. I see it, too, in the young generation.
Personally I think he is miss remembering the “good old days”. In 1982 I became a car salesman (yes a low point in my life) and one of the things the manufacturer was trying to correct was the ignorance of salesman. They found that if a customer read a sales brochure they would know more than the average salesman.
Now if you can find a real truck salesman then you can get into technical discussions on towing, payload, tires, axle ratios, etc.
I feels like a loss of hope...