Seems like an easy fix for a business, just change their prices so that they don’t have to use coins. Make everything an integer number of dollars. If the items are too cheap to round up, encourage a three for two deal or something like that.
Sales tax doesn’t change that frequently. It’s easy for a business to predict and account for it when setting their prices.
Japan is living in the future that the 1990s dreamed of. (startrek.website)