People in the Apple ecosystem use the Find My app. Tight knit groups of women, loose knit groups of guy friends, all the way to significant others, parents to children, children to parents, you name it.

Its gotten to the place where people don't even communicate addresses, and if you don't know to look at the stalker app to meet up with them, you'll just be left out. Its ironic that saying it that way still comes across as problematic (your boyfriend/parent asked you to share your location!??!?) but its very common and very benign.

You can stop sharing at any time and the recipients just shrug it off like "yeah that's understandable"

My whole nuclear family uses find my. More than once I’ve helped give my wife directions by watching her dot on the map (Apple Maps had some problem). I regularly use it to pickup the kids when they have been walking around town. Rather than texting me their location every time they move, I just get directions when I leave and let them know when I’m close. I mean, at least a dozen companies know my location at all times (Apple, Verizon, Weather.com, Google, Tile, etc) so hardly an issue for my family to know.

As far as stalking or surveillance, I mean most people live very boring lives so watching them go from home to work or school: you have to really have nothing going on.

Nothing to hide, boring, data already "public". Were you going for the highscore of "privacy doesn't matter" clichés?

Ironically we do a lot to defend our privacy, such as kids not having any social media. I just pick my battles and recognize those I have already forfeited (I mean we could just use get walkies and speak in code, which we did before kids had cell phones).

Based on previous experience working with Life360 data, the accuracy is probably within 10 meters or less.