That's an interesting idea, but I'm not sure the problem it solves is worth the implementation cost. It's really trivially easy to bring a reusable bag with you

That's an interesting idea, but I'm not sure the problem it solves is worth the implementation cost. It's really trivially easy to bring a reusable bag with you when you go to work, on the off-chance you might go shopping. We're talking a couple cubic inches of volume and a few dozens of grams of weight.