And now Sainsbury have announce the permanent closure of their deli and wet fish counters (possibly meat counter too, I don't recall). I expect Tesco to follow suit - they "temporarily" shut their wet fish counter down during the first lockdown. All this in reaction to "changes in consumer choice" - oh, and lets not forget the increase to already huge (by comparison with many other similar operation) margins that will be gained by less staff, and higher priced pre-packed fish, cold meats etc.
Of course, the individual that wants just a single piece of fish or a couple of slices of ham is out of luck, as there are, in most places, no alternative wet fish shops or delis.