If you're from the USA maybe you're used to effectively a single payment system (or a small number that all use the same card reader) Many countries have far m

If you're from the USA maybe you're used to effectively a single payment system (or a small number that all use the same card reader) Many countries have far more payment systems. For example, Japan, 7/11 takes Line Pay, PayPay, Merupay, au Pay, R Pay, d払い, Smart Code, J-Coin, Bank Pay, QOU-Pay, WeChat Pay, Alipay, Nanco, R Edy, iD, QUICPay, 9 different train cards, Mastercard, Visa, American Express, JBC. Some of them you insert the card, some use NFC, some you scan a QR Code, some you show a QR code. Some have had big discounts or "points", probably to try to get market share. The discounts can go either way. Some are for the consumer (get 5% cash back for example). Others are for the merchant (zero fees for N months, etc...) There's tons of competition.