Interesting to see how common it still is to exclusively use cash, especially in European countries. In Canada, they put us in a prisoners dilemma situation where things cost the same regardless of whether you pay cash or card, but if you pay card, the merchant pays a fee and you get a portion of that fee, making it cheaper for you, while also raising the prices because they need to factor in this extra fee, so things are actually more expensive overall, and moreso if you pay cash.

Besides the monetary incentives, it's also much easier to track my expenses with a credit card.