Walmart doesn't support NFC payments.
Walmart doesn't support NFC payments if you do scanning of items while you shop.
Why would Walmart suddenly accept a method of payment just because you are doing your own scanning of your shopping?
Though it was only a couple of years ago I had a similar experience with other US grocery stores when I visited. Kroger's (mentioned in the article) for example didn't accept contactless payments either which made it feel like a widespread grocery store problem.
Did most grocery store already migrate prior to the Kroger caving?
I'm in the US and every grocery store I use (some Kroger, some not) have accepted NFC payments for a very long time.
Could be a regional thing. I can't remember the last time I went to a store other than Walmart that didn't have NFC payment options.
I had to leave my shopping to run back to the vehicle to grab my forgotten wallet from my rucksack.
Nice as an ideal. But even of consumers who claim to care, most will sign away all their rights for a 1,000,000-to-1 shot at a $1,000 gift certificate. Which shot is only worth 1/10 of a cent, if you do the arithmetic.