proximity sensor permission in android app

0

I am trying to design an app in android studio that uses the proximity sensor, I added the following code in the manifest.xml and it still doesn’t ask for the permission when I launch the app

uses-feature
android:name="android.hardware.sensor.proximity"
android:required="true"

Does anyone know why does this happen? Is the proximity sensor always activated and therefore doesn’t require a permission? Thank you!!