Days later, Kyodo News reports credit card transactions were disrupted across Japan on a busy Saturday evening, with Suica prepaid smart cards also affected. While cash is popular in Japan, with most locals carrying plenty with them to cover immediate expenses, some tourists were less fortunate, with a visitor from Taiwan finding himself unable to pay at a convenience store and noting โ€˜few currency exchange counters are open on a Saturday night.โ€™

Shortly before these incidents, cashless payments suffered intermittent failures across Singapore, with Business Times reporting this was the fifth such issue for DBS Bank within the past two years. Citibank customers were also affected as people took to social news and discussion site Reddit to share confusion over some payment apps working while others were down. Reporter Yong Jun Yuan notes the โ€˜service disruption coincided with a backdrop of increased buzz over the resiliency of local digital banking.โ€™

Cash is an essential complement to cashless payments. It offers unique benefits, such as the ability to pay offline and privately, while also serving as a valuable competitor to for-profit payment options such as credit cards. For individuals needing to transact while cashless payments are unavailable, for the businesses sustained by these payments and for the wider economy, cash is critical to stability.