Where are credit cards not that common in Europe? I don’t think I no a single person that doesn’t have one and most banks even give you a free Visa card (prepaid) with your normal bank account in Germany.
Not as high as I expected it to be honest but the article is pretty interesting. Apparently people have them but don't use them because they are not widely accepted in stores and they are very debt averse.
Source: https://www.dutchnews.nl/features/2018/01/credit-cards-not-y...
I would say however (from personal experience which may be biaised) that cards in Germany are less welcome than in other EU countries (for historical privacy reasons)