Avgas will be with us for decades more.
Is true. Though the
economy of Avgas may leave us. As the cost of fuel makes flying prohibitive for many pilots, they fly less, which results in reduced pilot currency. In an airline environment, simulators can make up a lot of this, but for GA, we're going to need a modest cost means to keep pilots, particular less experienced pilots, in the air. Electric planes will not fly far or for long, but if they keep GA pilots current, that's something....