I feel like the US would just switch to more durable polymer bills than try the dollar coin thing again. I only ever get them in vending machines. They are much

I feel like the US would just switch to more durable polymer bills than try the dollar coin thing again. I only ever get them in vending machines. They are much heavier than a bill so transport costs are higher and many people don't like carrying coins around anyway. Plus, at the point where a dollar bill costs too much to produce, we'd be in a near cashless society so small denominations wouldn't make much sense.