Thanks for your comment/thoughts.
We have an RA for our usual meeting venue in the Parish Rooms and that venue should really be more than adequate for about double the normal resident attendance with safe distancing etc. Although we are very fortunate to also have access to a very large Parish Hall and at the moment no RA has been carried out on that. Meetings in the Parish Hall would however alleviate any worries about having to turn people away due to an unexpected high number of residents attending but another RA on the Parish Hall would only be worth it for peace of mind if the 'must close the meeting if even one resident has to be refused entry' stipulation. Is that a legal requirement even in these difficult times.
One option that had crossed our minds is resident attendance by pre booking which would allow us to at least plan ahead, but again not sure how that might be viewed as being acceptable or not.
Unfortunately the residents who lack the tech, be it equipment or knowledge, are quite often the ones who need more help with an issue than do younger people. We have had an older person phone in but checking with them afterwards their comment was one of confusion on their part in trying to keep up with, what was to them, a tangle of disembodied unknown voices. I wasn't really concerned about blame but more with the best and fair way to connect with all residents.
Thanks for your thoughts, I think considering all it might be better to still go with Zoom for October and by then we should know if the present interaction rules are stable or otherwise. Then, if still practical, look at another RA for the Parish Hall if necessary. But one person is never a Parish Council so it will of course need to be discussed and agreed.