Self-scanning in supermarkets was supposedly all about speeding checkout as a benefit to the consumer. This is about speeding boarding - that's the marketing friendly benefit to be shouted about.
In actuality supermarket self-scanning is often slower than a traditional checkout queue. Particularly when items require staff authorisation. I expect this to be no better than traditional boarding in most cases.
The real benefit to both this, and supermarket self-scanning, is another low wage employee can be canned. This isn't a very marketing friendly message so it's no surprise that this isn't the message that publicised loudest.
In actuality supermarket self-scanning is often slower than a traditional checkout queue. Particularly when items require staff authorisation. I expect this to be no better than traditional boarding in most cases.
The real benefit to both this, and supermarket self-scanning, is another low wage employee can be canned. This isn't a very marketing friendly message so it's no surprise that this isn't the message that publicised loudest.