I don't see any issue with it in Russia. Almost all local stores (only the top 10 major companies though) now have self-checkout with a digital receipt. Since last year, I can self-checkout in a 24/7 store in a village of 10000 people at the sea. It's pretty wild, even though cashier's salaries are like $6000/year, they should've been saving a lot of money with these machines.