Cash For Clunkers took a ton of used vehicles off the market
Stricter environmental standards have also taken otherwise working cars off the market, by preventing used dealerships from selling them in general, and making it more difficult/more expensive to insure them
The days of buying a used car for 2 grand are long gone
Cash for Clunkers was important not because of the volume of cars it took off the market but because price points are sticky.
Before C4C garbage cars that ran but probably needed something were "I want it gone, $500". After C4C the same vehicles sold at the C4C price and the price point has more or less stuck. It completely turned the beater car market upside down.
That's a little steep, but you gotta grade mileage on a curve -- if it's reasonably maintained, it'll keep trucking for a lot longer than that, it should be plenty for a starter car. I mean, I'm biased, since I drive a (very well maintained when I bought it, high mileage) 2007 Prius that I bought for ~7.5k...8, 9 years ago? and I'm still getting ~40mpg and it survived some pretty questionable maintenance and care on my part.
10 grand feels steep, but for a solid car that'll easily last another ten years with minimal maintenance, good fuel economy, I don't know that you can do much better these days, and it doesn't feel unreasonable.
Oh, sure, I was thinking of a car relatively comfortable parents could get a kid without overspending or spoiling too much, it's not super in reach for a kid working part time.
Sure, totally. I was perhaps assuming a certain level of affluence from a HN commenter discussing buying a car for their daughter, but it's true that I described a heavily used premium economy car rather than the complete "at-least-it-starts" clunker that represents the actual bottom of the market.