I happen to be in Belgrade right now, and the McDonalds I've been today didn't have any barrier at the restroom. There was a keypad to enter a PIN, but the door

I happen to be in Belgrade right now, and the McDonalds I've been today didn't have any barrier at the restroom. There was a keypad to enter a PIN, but the door opened without a PIN. In Munich, there were human staff at the gate collecting 50 cents to use the toilet, and that's the weirdest McDonalds restroom I've been to so far.