On a couple of programs I’ve watched films of bank robbers attempting to hold up British banks and those tellers trigger bullet proof, defensive shields that snap up and seal off the tellers from the crooks! The crooks leave, without money. In one film, the crook tried to jump the barrier just as the teller triggered it, was snatched up to the ceiling, knocked cold but that portion of the barrier retracted when it met resistance, showing a safety mechanism built in. He fell off and it slid shut.
Around here, bank robberies are common things. Not one bank has anything like those shields. Why? Even many late night little stores have the solitary attendants behind shatter proof and bullet proof glass with service ports that can be closed, plus behind the counter cameras.
Banks only have cameras, often those which record low quality images, like they’re too cheap to buy better ones or replace the recording tape now and then.
Why don’t we have those barriers here, especially since 99% of the bank robbers will be packing a gun?