The switch allows the app merely to request tracking, so I'm surprised requesting that the user enable the switch doesn't violate the App Store guidelines (or maybe it does).
I haven't seen this option presented to me. How would I make sure that app tracking is turned _off_?
Edit: Never mind. I found it under Settings/Privacy/Tracking: "Allow Apps to Request to Track". I might flip it on just to see what nags me about allowing tracking.