The other 6 people in line keep an eye too, you can look away for a little bit, but you also use a blank card so nothing is lost.

I’ve never seen someone try and steal the change, why would they be tempted to steal an empty plastic card? Cameras have existed in these places for decades now, you’d have to be extremely dumb to try and steal some petty change when you’re are guaranteed to get caught, banned and likely get the police involved.

If your card was taken you wouldn’t go tell management? They would look at the cameras and deal with it immediately.

Yours inventing scenarios that don’t exist.