^I don’t disagree with the spirit of most of your points.
But I think wide-spread programs to catch a couple of beaters are not cost-effective or really about what they say they are about.
Today’s online auto listings for a city of 100 000 near me:
2014 173 vehicles.
2009 117 vehicles.
1999 20 vehicles. [4 SUV/van, 5 cars, 7 trucks, 2 sporty, 2 parts]
1994 7 vehicles [2 SUV/Van, 1 car, 1 truck, 1 sporty, 2 parts]
1989 3 vehicles [1 car, 2 parts]
1970-1988 total 16 [1 SUV/van, 2 cars, 5 trucks, 6 sporty, 2 parts]
So (of the vehicles for sale) by 20 years there’s only a handful that might get used a lot and be a beater. By 30 years it will be hit and miss for a given year if there is anything, but when you look at the combined 18 years (70-88) you now have way more representation in the sporty cars and of the others most would consider collectible (i.e., the 70s trucks) rather than daily beaters.
The cars in use on the road is an upside-down pyramid where the 20 year mark is well on the way to being the fine point of insignificant numbers.
However, the collector cars is the opposite kind of pyramid where low-use vehicles become more common as they get older (only a few drivers of the large number of new cars can low mile a new car). By 30 years old collectors are the larger ownership group of that cohort of vehicles rather than A to B daily drivers.