Cash can be spent without being monitored or blocked.
A recent example of how this might be relevant is with the protests in Canada that lead to the freezing of the protesters’ bank accounts by the government. While I don’t agree with the protesters, the idea of the government freezing their accounts is alarming. After seeing such control exercised, it’s hard to be excited about a cashless society.
This feels like a boat that sailed long ago. I don't know anyone using cash for anything more than small incidental purchases, I'd say it's generally impossible to structure you life around using Cash at a large scale.
A recent example of how this might be relevant is with the protests in Canada that lead to the freezing of the protesters’ bank accounts by the government. While I don’t agree with the protesters, the idea of the government freezing their accounts is alarming. After seeing such control exercised, it’s hard to be excited about a cashless society.