like storminabuttercup I aim to be friendly and can chat or not, depending on whether I am in a hurry or not. Don't need help packing but thank staff for offering... really appreciate it if they can open a bag or two if I have a pile of stuff to pack as the bags seem to be getting thinner and more awkward to open (if I've forgotten to take a 'bag for life')
Saw one comment "perhaps all these complainents would like to go through the self service tills"
generally I'll go through the self service tills if I have a small number of items, or no security tagged items, but there are times (a few times here, at Asda, and once at Tesco where I used to live) where I've had staff near the self service pretty much tell me (rather than politely invite me) to use the self service rather than a till with a cashier.
I have (at local Asda) told them politely, more than once, that "I intend to use this till thank you" and don't say anything further (it's usually when I want about 3 mobile phone top ups and wish to pay for them with a second card, something the self service tills won't easily accommodate!).
They now seem to have someone whose job is to walk along with a big pointer to show where there's a till with no/short queue, so I assume they consider anyone without a trolley "fair game" to be told to use the self service tills.
While OP has a good point - I don't always want a running commentary - it is worth understanding the cashiers' side too, and while I rarely feel the staff need to be "Sorry you had to wait" (that's what a queue is all about!) I can imagine that orders from on high make much of the "customer service experience" fully trained and marked and subjected to scrutiny, and unless someone is particularly unpleasant/ rude towards me, I have no wish to get anyone into trouble in a shop - they're under plenty of pressure anyway, with a seemingly endless queue of customers, scanners that can prove temperamental, need to be accurate with cash, etc, etc.
Must say that all the staff I've met so far, from Aldi, Argos, Asda, Lidl, Tesco, mobile phone shops and a pile of "pound stores" have been great. Least pleasant experience has been at Wilkinsons where they don't seem to know the phrase "customer service" (at least in the local store - when I lived in N Wales, staff at that store were fine)