I bet they use card instead... In Germany you stand in line waiting for everyone to find exactly the right change, be them young or old. Most people pay with cash even though it seems to get more common to use card. Euro has at least eight different coins. Sweden has 1, 2, 5, 10 as coins but most people still pay with card because it's easier and people are not burned by the big brother syndrome of the WW1/2 :-)

Would be interesting to see relative difficulty of each language, some of them are pretty close and have very similar difficulty while others are close but widely different difficulty.