Cash is still king. Annoying or not.

Nothing smells better than real hard cash especially USD.

Digital money is not money. Any network issues and u will have none. I have seen this in real life. Some bloke wanted to pay QR or scan but the business either don't have QR or the system is offline.

So, don't write off cash yet. Keep some handy. I set aside around 1-2k monthly in cash for backup. Any unused cash will go into a safe. And the safe is bolted down and dressed like an ordinary IKEA furniture. Tough luck for thieves.