nowadays I only use my debitcard and have nearly never cash on me, the card is not free and costs about 35$ a year
I would not mind a cash-free economy as there are free services here that you can transfer money to people just based on their mobile phone number
thou I see that the most poor would suffer the most and not the criminals that can trade in different ways, the beggers/homeless that does not have bank accounts and the street artitsts, I dont mind thoose and it would be a shame that they would have it harder
If and when cash goes away, we are all screwed; even more screwed that we already are. Without cash there are no more anonymous transactions. But even more importantly, there will be a middle-man in every transaction you make. Remember when Visa and Mastercard decided they didn't want to process payments to Wikileaks? You can expect more of that.
Just like the curtailment of our rights isn't a big deal in everyday life, it may not seem like a big deal to have to pass through an intermediary every time you want to buy something. But what happens when you want to donate to a cause that is a thorn in the government's side? Every company folds in the face of national security letters. It's already a crime to materially support terrorism. And protesters are already considered terrorists by law enforcement. It's not unthinkable that your donation to the EFF could bring men in dark suits to your door, or put you on a no-fly list. Think I'm paranoid? That's what they said when I said everyone was being spied upon.
Money (debt, more specifically) is already a means of control. Once there's a searchable record of all your financial transactions, you won't be able to do anything the government doesn't want you to do.