NFC has a range of around 5cm and has nothing to do with how AirTags work for tracking purposes. Do you really think AirTags only update their location when someone with an iPhone comes over to intentionally scan it?
Even if you bury the AirTag in the middle of the luggage, it will still be trackable, but NFC will absolutely not come even close to reaching it.
They’re not going to have off the shelf equipment capable of locating an AirTag quickly enough to matter even if they can tell there are AirTags somewhere in the general vicinity of the luggage area. That’s just not how any of this works.
Whether the rule itself is ridiculous or not, as others have pointed out, the main benefit seems to be that they can tell customers to stop bothering them about luggage that they’ve lost.
I put an airtag on the inside pocket of my luggage, and am having no luck scanning it from the outside. It seems unlikely this will work. I can still find it with my iphone though.
Yeah but security scanners don't have NFC readers built into them, and even if they did, the range is too short to be useful the way scanners are built.
You don't need to reveal your AirTag to report a lost bag.
And carrying an AirTag, even if it were against their rules, does not somehow absolve them of their duty to return the bag (and/or pay for the lost luggage).
You can test this yourself by downloading the NFC Tools app on your iPhone (or one for Android) and doing a read on the AirTag.
https://apps.apple.com/us/app/nfc-tools/id1252962749