When I was DF'd 7 years ago my youngest was 5. She was very close to her JW family. This includes my side and my ex-husbands side. Unfortunately, the day they DF'd me they basically did the same to my children. Even their own JW elder father does not have anything to do with all three of my children.
She would ask me all the time why we could not see Grandma, Aunts, Uncles and especially her cousins. I simply told her that her family loves her, but the religion they choose does not allow them to see me. If she would like to speak to them I would dial the phone and she could talk to them. After a few times of a young child having to pursue a relationship she ended that desire quickly.
Now she is a teenager, as are my other children, and they look at this religion as a cult. They have no anger, but they will not be drawn into any fundamental belief. They are kind to their family when they see them in public, but their rejection of them makes them kinda shake their head. They saw through all of the BS without me having to be the one that slammed their family. Works the best that way. JMO
Leslie