There is something to be said of course for locking this feature to the device's home location. How hard can it be? There are many like geneliajai
But should he suddenly want to convert to e.g. Judaism he would have to ask eyebeam again!
I.o.w. by insisting on an app he is denying himself religious and/or cultural freedom!
He is denying himself a basic human right!
Well, to each his own of course.