Even the poorest EU countries are actually surprisingly wealthy.
Bulgaria was switching to Euro on the new year’s eve and the easiest way to convert Leva to Euro was to put the money into the bank, so Bulgarian deposits reached 100B+ levas into personal accounts by November which converts to ~50B+ Euros. Which is over 10K Euros per Bulgarian adult. Not bad for the poorest country, considering that home ownership rate is also very high(%86 IIRC).
The life is pretty good for a GDP per capita of $18K.