A few reasons I can guess…

- Camera recognition IP is pricey

- Privacy bits… cause *everything* during that “try on” will be logged

- one chain can do this, but not all, making it a regulatory nightmare

There was a fit in 2017 right after CES (Consumer Electronics Show) about all of this for just makeup “smart mirrors.” And that evolved to the “WeChat is making folks lighter/smoothing out wrinkles” fervor. Which turned into a hard look at camera tech. Which turned into why Google is louder about their camera tech not being biased towards lighter skin tones…

…it’s a cascade of reasons