That leaves only the simulator. Again, time and costs limits its use for other than regulatory requirements unless the operator takes the enlightened view that there is a cost benefit to scheduling regular pure flying practice because there is a flight safety spin-off in the long run.
My theory of how we got here:
Just a few decades ago, automatics were unreliable enough that manual flying ability was something one needed to keep current on for good reason - 1 in 50, you could be handed an aircraft that needed to be 'handled' with no help from George, with his cousin McDoo barely able to keep an accurate track beyond 300nm without some learned, situationally aware input from time to time.
Now, in the world of synthesized digital 'perfection', there is the idea that we can train for a calculated percentage of possibilities by some MBA types to remain within the 'margin'.
The solution lies with re-establishing safety culture and the way there is through regulation and reward as you suggest, TM.
Regulation comes from the industry and government working in a (for a change) truly functional way, and reward coming from the industry in conjunction with an educated marketplace, the last of which might need some sort of fertilizer of a more refined nature than the blend currently being applied to the masses.