But as I said earlier, these businesses had financial help when the government required them to apply restrictions, so equally should they not respect the government's position once the restrictions were all lifted?
I don't understand why you would support setting rules that go against both the government's new position, or indeed the data. Covid seemed to spread perfectly happily when many more people were still wearing masks, and the data seems to support that. So the simple premise is, why continue to insist on them when 99% of businesses are back to normal? What's the goal other than try to appear to be virtuous?
And herein was the problem, lots of restrictions were described as such, yet few (if any) actually had any discernible impact. And perceived risk levels in various indoor places were wildly different and often completely illogical. For example walking around a pub for a few seconds was at one time seen as high risk, hence masks being mandated, but the moment you sat down the risk reduced. Or supermarkets considered lower risk than an aircraft, despite the latter having much more effective air replacement & filtration systems.
The point is that for the most part, mask wearing was simply to remind us of the virus. Indeed right back at the beginning when they started to be mandated on public transport the government position was "to make people feel safe".
Because so long as some continue with pointless, and largely ineffective measures, the longer there will continue to be some people trying to pressure people to carry on using them. As you rightly note there is no point trying to protect the majority of people, as of June last year the ONS estimated that 96% of the population had been exposed to the virus, a vaccine or both. Indeed for the majority of people there was more than 14 months of circulation before large scale vaccination really started to kick in. More than enough time for it to have spread around the majority of people.
Only when all the population accepts that the virus is now endemic, and is not going away can all relevant minds focus solely on mitigating the risk to those who are genuinely at risk without the background noise of people still believing that a flimsy bit of cloth across their face will save them / others from the virus. I still see it in my workplace for example, with our union still pushing hard to restrict numbers in offices, wanting forced mask mandates etc. Its noise we no longer need when focus needs to be getting the economy into full swing again, and start to make up some of those vast costs that the restrictions cost the country.