They can but remember, having location always on, collected when the app is backgrounded, is a deeply buried permission, once turned off it's hard to turn it ba

They can but remember, having location always on, collected when the app is backgrounded, is a deeply buried permission, once turned off it's hard to turn it back on(or in apples case reminding user with a map to tell you "xyz app has collected your location"); Google is poised to make it more difficult to activate. Now the Thing is even though background collection is bad in principle because apps must indicate purpose of use for such a sensitive permission and it's hard to think how apps can make a case for it; Google and apple apps still do it for their own apps by default!(Apple does not even have a wifi scanning API) The only way to get any location based notif while backgrounded for 3p apps is Geofencing which is narrow and not workable for location targeting.