Earlier quoted context omitted.
I know a Velis Electro can fly for an hour, that's plenty of time for flight school. I'm sure there's better options now too. If something needs to take longer than that and is worth doing, then do it with a turboprop. That's besides the fact that there are genuine certified unleaded alternative fuels for piston aircraft now. Fucking "we oh can't do it" lead apologists smh.
"One hour is plenty of time for flight school" is not doing you any favours in coming across as knowing what you're talking about lol. Good freaking luck completing cross-country flights for an instrument rating with that endurance, never mind your certainty that there are "better options" as if the laws of physics have changed dramatically between 2020 and today. And I mentioned workhorse aircraft for a reason, cons…
You can't just run piston engines on jet-a but you can run them on regular high octane from any regular gas station or any of the actual alternatives, my point was you can swap them for small turboprop powerplants and run the plane on jet-a. Afaik reducing knocking is not really the point of avgas either, which I'm sure you know, but vapor lock at high altitudes, which you can easily avoid by... not flying high, which by your own point is the main use case for piston aircraft. I guess we'll just spray lead over everyone instead, cause it's "safer".