Thanks Bestwifeever for the post. Your first sentence hits the nail on the head: "would not see us or the other grandparents". A policy that treats all the same-good for them! I'm fairly confidant it was also DD and her DH's initial approach.
DD was very upset, (as all were), somewhat fearful, etc., particularly when my 6 year old granddaughter got off the bus the day schools closed, in hysterical tears, because someone on the bus told her "adults would die".
As the weeks have rolled by and some simply find it impossible to continue with Stay At Home Orders and some perhaps never did, boundaries appear to be loosening. That was not communicated to both sets of grandparents until and after his parents "decided to come anyway".
So now...the offer has been made to me...that when I go to the bayfront condo I purchased 3 years ago which is in the same city as DD and her DH, perhaps they will visit, provided we "walk" on the bay 6 feet apart (impossible with young grandchildren). I have only been to my condo once during all this, for about 2 hours to clean, flush toilets and change the setting on HVAC -then immediately back to my primary home.
Part of the point is or may be that I will have to decide whether to break or change my own level of restrictions because they have relaxed their boundaries with the other set of grandparents but did not do so until the "they came anyway" day.
I think I will sit tight for now and abide by my states Orders and Guidelines.