It’s faster until you need the human operator to keep coming over because the anti-theft sensors keep getting tripped up by false positive readings. Or you need to find some vegetable code that a normal cashier has memorized.
Self checkout is great when it’s done well, and total shit when poorly executed. And unfortunately, it’s not always just a matter of technology (which normally keeps improving); it’s often a matter of business model: sometimes customer convenience is really important, other times loss prevention (which creates frustration) is more important.
I’ve seen countless good self-checkout experiences backslide into crap experience because the business felt that a controlled client is more profitable than a convenienced client.
You’ve got bigger problems than labour relations when “having a pleasant feminine voice” is the success criteria you use to measure the performance of a reporter.
I dunno, this logic sounds exactly like the fucked up logic that went on in the conference room that dreamed up this shitty idea only to have it face reality and be pulled on day one.