It would seem foolish to give up what control they currently have. A lot of people like me would simply use other forms of valued items directly, thereby bypassing any etf system altogether. I can already buy eggs, produce, and fuel with junk silver any time I want.

Getting paid by my current employer in something other than etf would be a serious issue. I suspect I would have to go into business for myself under the radar if I wanted to avoid the conversion issues.