Why leave Require Attention on -- if it makes it slightly more difficult for faceid to register. What is the real benefit of having it on? I don't see anyone forcing me to do anything with my phone or sneaking up on me while my eyes are shut and opening my phone -- so is there a reason to leave this on? I'm not sure I see the benefit. And it seems like there is a huge benefit to leave it OFF for easier unlocking even if you don't directly look at the phone. I've tested faceID with it on or off. And with it off, it seems like it is easier to unlock from more angles, farther away, while in my lap, while its flat on a table, etc. No holding up to my face or 12 inches away. So again -- why bother with Require Attention set to on? Am I missing something other than the paranoid security concerns?