Cashiers are at minimum twice as fast as customers mainly because after doing it for a while they start knowing were the bar codes are in most products and don’t have to look around for them, know which are the awkward things to scan and how to do it, and are so used to the layout and sequence of the screens that they just go through them naturally.
You simply can’t be as fast at doing something you do once in a while, as somebody who spends hours every day doing it.
Also were I live the cashier doesn’t do bagging, the customer does, so whilst in a self-service checkout you’re doing both scanning and bagging, with a cashier they’re doing the scanning and you’re doing the bagging which also makes the whole thing much faster even if you’re making sure things are bagged the way you want it (for example, having all cold things in the same bag) because you can focus on bagging.
As for the lines being non-existent in self-service, that’s not quite so simple a judgement as it seems:
First, I noticed that in stores where they introduced self-service checkout they invariably reduced the number of people manning the other checkouts in order to “induce” customers to use the self-checkout (because “the lines are usually nonexistent compared to a cashier”).
Second, once a store has fully transited to only self-checkout, you get lines at the self-checkout, mainly because as I pointed out above, customers are way slower at doing the checkout themselves than cashiers so even though there are more self-checkout tills that there were tills with cashiers before, people take longer to go through them, especially when they have lots of things to checkout, so effectively each self-checkout till has less capacity than a cashier till.
That said, self-checkout is faster for customers in stores with mixed systems (both self-checkout and cashiers) if you have only a few things to checkout.
Correct, which is why no matter how fast you are at the checkout part it’s still going to be slower, especially if you’re trying to bag things in any way other than “dump stuff into bag as fast as possible” - you can’t both be scanning an item and putting an item on the bag at the same time unless you’re just dropping it there without looking (which is a problem if anything you’re buying is in a glass bottle or jar).
Cashiers are at minimum twice as fast as customers mainly because after doing it for a while they start knowing were the bar codes are in most products and don’t have to look around for them, know which are the awkward things to scan and how to do it, and are so used to the layout and sequence of the screens that they just go through them naturally.
You simply can’t be as fast at doing something you do once in a while, as somebody who spends hours every day doing it.
Also were I live the cashier doesn’t do bagging, the customer does, so whilst in a self-service checkout you’re doing both scanning and bagging, with a cashier they’re doing the scanning and you’re doing the bagging which also makes the whole thing much faster even if you’re making sure things are bagged the way you want it (for example, having all cold things in the same bag) because you can focus on bagging.
As for the lines being non-existent in self-service, that’s not quite so simple a judgement as it seems:
That said, self-checkout is faster for customers in stores with mixed systems (both self-checkout and cashiers) if you have only a few things to checkout.
With self checkout you do the bagging while scanning though.
Correct, which is why no matter how fast you are at the checkout part it’s still going to be slower, especially if you’re trying to bag things in any way other than “dump stuff into bag as fast as possible” - you can’t both be scanning an item and putting an item on the bag at the same time unless you’re just dropping it there without looking (which is a problem if anything you’re buying is in a glass bottle or jar).