I do not suggest in any way that those in the unhappy situation of being estranged from children and grandchildren should not have support/counselling etc to help them manage a difficult situation.
What I find somewhat inappropriate is the vitriolic responses and comments, that I feel, in some posts, which is on, after all, an open forum.
If people in distressing situations ask "Am I being unreasonable..." and people offer opinions and ideas suggesting they could have played a situation differently (based on the given the information) they have to be prepared to listen and reflect. Otherwise why ask the question?
If someone facing estrangement asks for advice and support from others in a similar situation to set up a support group, or to lobby health/legal organisations etc. that is an entirely different situation.
The OP here is sort of asking for this but it does not seem to be structured or backed by any clear plan but simply asking for people in troubled circumstances to tell their sad stories. This could be construed as voyeuristic. That is why I feel uneasy.
Also, sadly, we all have to recognise that grandparents do not have any automatic rights over their grandchildren. Whilst it can be a joyful and mutually beneficial relationship many children thrive happily without grandparents because they have died. Some children benefit from avoiding grandparents, who after all, are not all sweet, apple-cheeked & benign.
It is the emotional needs of the child that should be paramount in all adult /child relationships.