Cashless can only work if you adopt a digital cash such as monero, other wise you are taking away privacy, control and possibly small transactions (depending on what fees are common in your country)
In a cashless society banks and credit companies become your rulers as you have no real way to bypass them.
I suspect that any country that tries to go cashless without a real cash alternative, will just find itself with a new form of cash (gold, silver, etc) since eventually there will be enough people trying to avoid fees and taxes
Shit, I didn’t get the update to Earth 2!