Stores in NY have biometric identification
(files.catbox.moe)
Eerie. Wait until the advanced neuralink chip is released and required in your body to buy, that thing is rumored to completely nullify your privacy and emotions, making you a glazed zombie (it controls your neurons). Death penalty if you don't get it.
Sunglasses
Born a mute
Or, just don't shop there.
Kind of like how all those CSI type shows made people think all criminal investigators are also scientific geniuses who will essentially "sniff out" microscopic amounds of dna or other "smoking gun" matter at every crime scene, when the reality is most of them have limited if any actual investigative talent and are a surprisingly small part of a process, often producing nothing of value (or nothing at all).
If there has been an instance of someone being caught due to "gait recognition" alone, it most likely was some peg-leg Pete - about as ideal a condition as you're gonna get in the walking-assessment trade.
I'll stop short of saying it was intentional - in the case of Tom Clancy and Ian Fleming they probably just wanted to write cool stories of spies and intrigue and nobody wants to read a story about political bickering and laws of war (well unless you're also Tom Clancy with books like The Bear and the Dragon which was a good story but it's like 6,000 pages long and mostly political bickering). And Ian Fleming didnt really focus on real world politics too much (some exceptions involving the USSR in one or two novels) instead inventing villainous characters who were operating outside any government or: Blofeld.
But it all definitely becomes a form of propaganda in its own way.
I've heard of gait recognition technology many years ago but I suspect it entered common knowledge because it started showing up in TV shows and movies. I think I only saw it in one of the Punisher series on Netflix (I think the guy in hiding tracks Frank Castle that way) and I believe one of the Mission Impossibles (an old guy is walking into a secure area and they have a display tracking his movement).
But Mission Impossible also had a projector you could put up in a hallway that renders a perfect parallax of the hall by tracking eye movement, forming an invisibility field, which is another "yes, but also no" technology.