Earlier quoted context omitted.
I just want to present a counterpoint to your claim that in the EU, CCs matter less: there are countries in the EU like Sweden where cash is virtually non-existent. Basically everything is card-based here, I've even seen panhandlers who accept electronic payments in Stockholm.
Card != CC. The point is that in EU there's less motivation to use credit cards than in USA because the situation is better for payment cards that are not credit cards. If you refer to Sweden, I believe that the split there is that something like 40% of the cards are credit cards, and the majority are not.
I do have a Visa DC and a MC CC for redundancy if my bank is down, most people I know doesn't even get why.