Although Costco has removed all the Do-It-Yourself checkouts because it finds that cashiers are a lot faster, many other stores, such as Walmart and Kroger, are intentionally expanding them, meaning that self-checkout will be the way to shop in most places in the future.
It's the future. Some in the retail industry view self-checkout as a sort of "on ramp" to an era when everybody will just pull out their phones and use a bar code reader to scan items while they shop, then pay and walk out without having to wait on line or pass items over a scanner.
While Costco sticks to cashiers, Wal-Mart is one company that sees self-service as the wave of the future, expanding a pilot program it calls "Scan & Go" to more than 200 stores this year. It's not alone. Last year, Supermarket News reported, "Kroger is trying out self-scanning handheld devices that consumers can use to scan and bag their purchases as they traverse the store."
Then there are the drawbacks to self-checkout, which some retailers have found out about the hard way.
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