I Denmark we are removing the 1000kr bill as of May 2025. from then on the highest bill. is 500kr which is roughly equal to 80 usd. Denmark Is the most cashless society I have yet experiences (and I have been traveling a fair bit). This comes with pros and cons. and I think the reason why it works is because of an incredibly high social trust.
The highest denomination in my country is worth about US$40, but that is a large amount of money. Yesterday I payed for lunch for 4 with about half that.
So I wish the larger denominations would just go away.