What does it end up costing every time they have to shut down an airport terminal, cancel all the flights, and re-screen all the passengers because some dumbass went in through the out door?
What do these subway exit turnstiles cost to install? They’re in every subway station in the free world, pretty much, so they can’t be that outrageous.
Just saying.
(Online research still sucks. How much more can I say about that?)