I barely use cash. I don't like it but I've been programmed that way. For nearly 20 years I had PayPal Business debit and I earned 1% back from every purchase. Then in 2020 or 2021 I closed my account because the woke virus got them.

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Debit card where I earn sats.

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Connected to my debit card at credit union to earn sats.

Of course this is all privileged life and it is what it is. The more businesses that benefit from buying power the better. The central banks are threatening banks and credit unions so the push back is that smaller organizations want buying power.

Cash as far as Fiat currency goes is about 2% of the M2 or monetary count. As a bearer instrument is great but still it can be front run by digital dollars and of course money printing.

Great question!

I guess finally I'll share that having lived in urban areas I've not carried cash because I didn't want to get robbed (so I fill out a W2 in order to get robbed by Uncle Scam.)

I would love to figure out how to do a bearer instrument like cash for Bitcoin but I haven't and I don't like the coinkite solution. Reading Andreas Antonio book on Bitcoin I liked how one could get a QR code to pay and use that same one to show an ATM but that's not considering lightning.

Something to think about fo sho.