It is so difficult rookiemere. I suppose the anxiety and increased frailty could have happened anyway, but it does sound as if covid and all the messaging around that have worsened/ exacerbated it.
My DPs travelled the length of the country by train to go to a funeral in March 2020 just before everything kicked off, and I honestly can't imagine either of them would be able to do that at the moment... just the lack of socialisation/ little walks here and there and so on that they haven't been able to do over the past year, coupled with general getting older - DF always used to walk to the shop to get a paper, but felt nervous doing that, and now he can't make it that far any more. It is sad.
I think the suggestion of little trips is a really good one, though. DPs have started going to a farm shop and cafe, sometimes with a friend, and they do enjoy that, and now they're fine with eating inside in restaurants/ cafes as well as outside.