My main one is the euro.
I think it’s great I can go to a whole load of other countries and use the currency and that I immediately understand what price things are without having to convert currencies in my head. You can also tell more readily when someone is trying to rip you off as a tourist . However, I lament the sense of difference national currencies gave countries. The franc, the deutschmark, their differing designs and different national heroes etc. on the notes. Now we have a little bit of difference still on coinage (and these coins circulate throughout the Eurozone) but the notes all look the same from Athens to Dublin. I know there are still plenty of countries that have their national currencies intact but the euro, as useful, as sensible as it is just seems like another nail in the coffin of regional variation. Ironically enough on this small island we still have two currencies and will do for the foreseeable future.
What’s your new things that you know are an improvement but you still lament the old way(s).?