The Verge:

Apple’s new iOS 13 update adds a new privacy measure that requires apps to get your consent in order to use your device’s Bluetooth. After installing the latest version of iOS, trust me when I say you’ll be surprised by the number of apps asking for Bluetooth permission the next time you open them. Some might seem very strange (like Dunkin’ Donuts in my case), but others probably won’t make you think twice about giving the thumbs-up.

The reason Apple implemented this is because Bluetooth has enabled companies to sneakily track your location over Bluetooth by using beacons in stores, shopping malls, and even on popular city streets if they’re placed within range of a place you’d walk by.

While this is a good feature, Apple has done a poor job of explaining to average users like my wife why these notifications are suddenly popping up on her iPhone.