I was looking at histories and such concerning the post-WW2 decline of general aviation in America. Most of the stated reasons center around costs, regulation, lawsuits, and changing demographics. None of these I’m denying were factors, even major ones. But I came across something that was very eye-opening and was not mentioned in most of the usual ones.
That was the decline in its practicality. One amusing side-part of the “flying car” discourse is that in a way, in the early postwar period, flying cars in the way we think of them kind of existed. See, in the early postwar period, as long as you could afford something that still always cost at least the equivalent of six figures today just for the airframe (ie you were a rich professional), flying in your own aircraft over the Depression-adjacent countryside was frequently the quickest and most convenient way to get from point A to point B. Whether it was for the luxury of a getaway or the necessity of business travel, there was a practical use.
Later on this eroded with two big things, which I shall provide graphical illustrations of.


Yep, better roads and better, cheaper, and more accessible commercial air travel. Which meant a lesser actual need for private planes, which naturally had giant ripple effects. At the very least it’s an underappreciated piece of the pie.

