My wife and I left in the 1960's.......... back in those days and into the 1970's a person could disassociate without being shunned. You just lived your normal life. Family would be disappointed but they wouldn't (in general) slam the door in your face.
When Bethelites tried to study the bible (not the WT publications) they were subjected, as of 1980, to being thrown out of Bethel and disfellowship as was GB member Raymond Franz.
Since Jesus welcomed two or three gathering together to study his words this was an extreme position to take by the WTBTS. Sought of Satan's position if you think about it.
Matthew 18:20
The Society went on a witch hunt for anyone that wanted to follow Jesus' idea that two or three could gather together and read from the bible in Jesus name.
This bull shit lingers to this day.
How dumb is this?
In our case my one remaining JW niece (her uber JW mother died when she was 13) decided to shun us. She was born seven years after we left the religion.
Unfortunately I have forgotten the names of her children.
When a family member makes this kind of decision there is nothing one can do about it.
Of course we made sure to disfellowship them from our Will.