So does writing down a card number or writing a check or even the dreaded IOU. Double also, if things break like they did on Friday, ways to get cash(ATM, tellers at a bank) will also be impacted as well as the things that you might spend cash on (gas pumps, cash registers etc).

I dont think that cashless needs to exist and having paper currency is useful in a lot of cases but in 2024 the idea that cash is the solution to much of anything is a little silly.