Do you read your wife/girlfriend's texts? After all, if she's not hiding anything, then there shouldn't be anything wrong with it, right?
Now you understand why some people find that intrusive unless they consent to FMF freely.
Yep. And she reads mine. That's the thing: generally, only people who are shady insist on privacy. But my significant other can track me all she wants because she knows where I am most of the day anyway.