Interesting statement from the Bank of Canada, their central bank.
During this time of heightened public health measures intended to limit the transmission of COVID-19, some consumers and businesses are choosing not to use cash to limit potential exposure. Refusing cash could put an undue burden on people who depend on cash as a means of payment. The Bank strongly advocates that retailers continue to accept cash to ensure Canadians can have access to the goods and services they need.
This is important, and like the Reserve Bank of New Zealand who also recently underscored the importance of cash in the economy, it reinforces the importance of keep real money available.