I couldn’t read the rest of the article because I’m not a subscriber, but this strikes me as incredibly stupid. But it’s typical of the romantic, anti-technological mindset of the liberal world (and I’m sure the average “coffee shop” owner is pretty liberal, unless we’re talking about Greek diners, which I don’t think we are).
Maybe books are too modern. Maybe the readers need to haul out a roll of parchment. Oh - but wait, isn’t the cash register electronic???
But, if those coffeeshop owners want to really starting losing business big-time, go right ahead!