People keep referring to the 'elderly and vulnerable with no smartphone or internet access' but you don't need either to look at a price and hand over your physical discount card.
I was responding to PP who said that you could easily compare between supermarkets. Of course, you can see the different price options in one shop once you’ve gone there.
I definitely don't want any supermarket monitoring my spending etc.
Why not? How do you think it negatively affects you?
Wait until they fully bring in the social credit system. If you’re buying what the government consider to be ‘too many’ bad foods, you might not want to make it easier for them to punish you or ban you from buying any more.
This is where having a good grasp of numeracy comes in handy. I'm often found stood in front of a shelf with a furrowed brow trying to do some mental calculation. 😆Shouldn't have to be like that, I agree.
Yes, definitely; but it’s really harsh on those who struggle with maths or have learning difficulties or cognitive impairment. I once looked at some toilet rolls and they had a tiny little ‘13p per 100 shts’ on the price label – which I must admit did make me look again more closely 
Why can’t you just take her to a cheaper supermarket instead that don’t require club cards?
The club card saves me literally hundreds of pounds and I think if people don’t like it then they should just shop elsewhere.
So you really think that elderly, disabled and other vulnerable people should be completely excluded from a major food shop - maybe the only one in their area - because of an arbitrary marketing decision?