Earlier quoted context omitted.
I know you're referencing more than pennies, but to speak to pennies, I find the current rounding noise in the US to be weird. Likely, it's just more of the media, talking heads, and youtube personalities trying to turn a nothing into something, story. Back when we did it in Canada, I don't recall a single person I knew concerned about penny rounding. Everyone was sick of pennies. No one cared. Everyone was happy. An…
As the article points out, there are laws that say people who pay via SNAP debit cards "cannot be charged more than others". If cash payments are rounded down, but debit card payments aren't, they are in violation of state law. The article also points out that rollback of pennies in Canada and other places were planned, addressing these kinds of issues. USA is doing it with no such planning.
Please don't strawman this, there is ample evidence for rounding pennies on everyday transactions.