Airtags leverage the popularity of iPhone devices and use that, not a single phone. Given there's a high probability of someone in the surrounding with an iPhone, you don't have to have an iPhone so that an Airtag will track your movements accurately enough.

That's not how Airtags work. From Apple's website:

> Your AirTag sends out a secure Bluetooth signal that can be detected by nearby devices in the Find My network. These devices send the location of your AirTag to iCloud — then you can go to the Find My app and see it on a map.

Airtags broadcast their ID via bluetooth and then any nearby iPhone with "Find My" enabled will be looking for these signals. If something is found, it sends the information to Apple and Apple then makes it available to the Airtag user.

The person or object doesn't need a phone (be it Android or iPhone) to be tracked. All Airtag needs is to be detected by someone else's iPhone.

Why are Android users vulnerable? Because iPhones will automatically warn you if a tag that isn't yours stays near you for a long time while Android users have no idea. Apple released an app for Android, but it requires users to perform manual scans...

So just to clarify. The attack is:

You as Android user live in a an apartment block. Your neighbor below has iPhone. Your neighbor keep getting warnings on his phone that unrecognized AirTag is nearby. He can’t find any and doesn’t speak with you about it.

When moving across the city it would be even worse as there is no neighbor that would get the tracking warnings.

Most people with Android phones participate in society with everyone else, and don't segregate themselves away from anyone who might have an iPhone.