Earlier quoted context omitted.
Bet those stats go way up in the next few months as more and more businesses get on the refusing cash bandwagon. Apparently it's for 'safety' but I live in a country where my money's made out of plastic or metal, that shit can be sprayed or dunked in iso. The excuse seems pretty flimsy too when again, places don't seem to bother cleaning off their pinpads before the cashiers or other customers touch them anyway.
That stat won't change much in the US. It's illegal for a store to turn down cash.
https://www.federalreserve.gov/faqs/currency_12772.htm
Private companies can refuse cash.