Do street performers today notice much difference in their 'hats'? As less people today carry cash.

That is what killed Open Monte on the streets.

Yup! Tossin' the broad, aint what it usta be!

I've seen a bunch of buskers put up a poster with PayPal and Venmo info on it.

Most places where open monte or shell games are being played are in places where international tourists pass by in large numbers. They are most likely to have local cash in their wallets.

We still carry a lot of money since I can't pay with credit card or debit card

but am sure everyone has some cash on him ... its true that less people have cash on them but it's impossible to have a group of people to perform to and non of them a dollar bill on them

I have found that all you have to do is to mention that you accept cashless payments, whether Credit Card, Venmo, PayPal, etc.

I have a QR code for my paypal account on my busking hat and people rarely use it tbh. Cash still reigns supreme IMO.

New world with "crypto currency/digital money" who know if this will continue with Bitcoin etc Most money in the U.S as of now is 99 percent digital already only about 1 percent is coins and paper bills. One day it may all be digital and paper and coin effects will be extinct? Yikes! On the other hand there are people who want a return to the gold/silver standard and abolishing central banks. let the free market in money and banking decide "What is Money?"