Isn't that how most people use their credit cards everywhere, or at least everywhere in the developed world? I thought the 20%+ interest was just a way to take advantage of you if you mess up and rack up too big a bill, or forget to pay your bill.
Anecdata, but I know multiple people that I associate with do caray a balance on their cards and by paying minimums. I don’t understand it, but then again I’m fortunate enough to have a software job that allows me to keep up with my social lifestyle without incurring debt.