I expect that there will just be unspoken gotchas like that 500 yen coin, "We do not do that here" or "110 yen coins only" signs on machines etc People will j

I expect that there will just be unspoken gotchas like that 500 yen coin, "We do not do that here" or "110 yen coins only" signs on machines etc People will just hoard old money and exchange new bills for old at banks rather than the other way around.