Is it? I lived in the US for 20+ years until 2021 and, though there were definitely more checks than I see in Europe now, the frequency with which I used them was approaching zero, which definitely wouldn't qualify as "stubbornly check-focused".
I'm in the US and things are definitely less check-centric than they used to be but I still probably write or receive a couple a month.
I'm in the US and things are definitely less check-centric than they used to be but I still probably write or receive a couple a month.