The call-out has been around at least since the early '00s.
Just like all security theater, it's easy enough to get around. All you need is the same looking card and the identifier. Most of the time, that's just the kid's name on the card. Some color code the card by class grade as well.
I know this as I was helping a friend scoop their kiddos up from school, and they just sent me to the school with the card. Nobody questioned who I was. They just saw the card, radioed the name, and the kiddos were waiting at the curb when I eventually crawled up to the spot. Since the kiddos expected me, there was no "who is that guy" situation. Otherwise, just fake a card and get a prize is how lame this setup is
Just like all security theater, it's easy enough to get around. All you need is the same looking card and the identifier. Most of the time, that's just the kid's name on the card. Some color code the card by class grade as well.
I know this as I was helping a friend scoop their kiddos up from school, and they just sent me to the school with the card. Nobody questioned who I was. They just saw the card, radioed the name, and the kiddos were waiting at the curb when I eventually crawled up to the spot. Since the kiddos expected me, there was no "who is that guy" situation. Otherwise, just fake a card and get a prize is how lame this setup is