I live in Massachusetts, and the stores near me have recently switched from accepting swipe cards to using chips (in the same cards). It's worse, for silly reasons. With a swipe card, you can swipe any time while the cashier is scanning your items, then after they finish scanning they indicate they're done and then it asks you to confirm the result. With a chip card, if you insert the card before the cashier is done scanning, it won't work; it'll give an error and you have to take it out and reinsert it after they finish. On top of which there's also a ~20% read error rate.