Visiting Malmö I see restaurants with "card only" signs on the door and in the menu. Denmark has taken measures to require most businesses to accept cash, but

Visiting Malmö I see restaurants with "card only" signs on the door and in the menu. Denmark has taken measures to require most businesses to accept cash, but Sweden doesn't seem to have done that. I keep ~1000DKK at home for emergencies, but I haven't purchased anything with cash for... um... a long time. Perhaps once in the last year.