I don’t trust that the infrastructure will always work.
I’ve had my cards rejected randomly. Since I travel a lot and mainly use cards abroad, I’ve had my cards rejected more times than not. It’s pretty troublesome to be stranded somewhere and unable to get a hotel or ride a train because your card was rejected.
I always keep a fat wad of cash for that reason. Also that at any time my bank could be shut down, governments or banks could decide I don’t have a right to buy something, power outages could render payments useless, or hackers could easily take down a network if they were motivated (and state-level actors have plenty of motivation now).
I’ve had my cards rejected randomly. Since I travel a lot and mainly use cards abroad, I’ve had my cards rejected more times than not. It’s pretty troublesome to be stranded somewhere and unable to get a hotel or ride a train because your card was rejected.
I always keep a fat wad of cash for that reason. Also that at any time my bank could be shut down, governments or banks could decide I don’t have a right to buy something, power outages could render payments useless, or hackers could easily take down a network if they were motivated (and state-level actors have plenty of motivation now).