My experience is opposite, Now with UPI which 99% of people have access to there is no incentive for people to accept Credit Cards.
Even before UPI credit cards were common accepted online. So I am not sure about that as well.
If in EU a local payment system captures the cash market, then the habit of using digital payments will actually also help Visa and Mastercard make more sale.
I currently don't have a credit card, but when I do, I find paying by a Visa/MasterCard much more preferable than UPI, simply because it's easier by tapping.
i was under the impression UPI is just the underlying protocol, but an interface can be built on top be it tapping/QR/others? is that not the case?