I see it like Europe pre € and post € as two different worlds. Literally everything started to change, in negative..

We could already pass between States almost borderless and every State had it's own policies/rules/regulations that were a mirror and an extent of their culture.

With the introduction of the same currency for everyone the pressure by the EU on each State increased immensely and everyone now and then had to comply and change in order to follow burocrats dictats and Davos agenda..