Does Apple have an interest in Bluetooth always being on? Is this meant to ensure that Airtags work well (even if the phone's owner does not use one)?
> Location Services uses GPS and Bluetooth (where those are available) along with crowd-sourced Wi-Fi hotspot and cell tower locations to determine your device’s approximate location.
> If Location Services is on, your iPhone will periodically send the geo-tagged locations of nearby Wi-Fi hotspots and cell towers (where supported by a device) in an anonymous and encrypted form to Apple, to be used for augmenting this crowd-sourced database of Wi-Fi hotspot and cell tower locations.
> The crowd-sourced location data gathered by Apple does not personally identify you.