I can only give my experience. After these past years of very bad experiences with my unbaptised, but raised as a JW husband feeling he was "called' to be active again, I am unable to pretend to support any of it. My limit is to fight to remain quiet about the JW when his cult personality begins to appear. I do agree with the question approach and do my very best not to have conversation, but to just ask the questions. However, no talk of the sort has happened in many, many months. The closest we get is when I voice opinons about other religion/politics actions etc... that parralel, but not bring JW into it.
He is not studying anymore, not attending, not going to conventions, but he is mentally still in. This is very very difficult. It causes him grief. Yet, if he were to be attending his mental mindset is so strong with the cult that he would almost positivly be sucked in to baptisim. There is a chance his also inactive for 30+ years but returned with both feet, brother is going to be baptised this weekend. We shall see.
Curiously, after a conversation we had about his very in JW cousin whose daughter is in her late 20s, homeschooled in a very lazy, irresponsible way ( she is not stupid just had no real opportunity to learn) still lives at home. The daughter several years back was working in a daycare then went to a CC to get a certificate or AS or something in early childhood development. I was thrilled to hear that. Yet now she has no job. She went to central america last year to special pioneer ( got sick in the infested areas of course) and is now home again, no job, nada. Her mother mentioned to another cousin she is trying to pay her to move out. huh? So she fails to properly educate, fails to instill a job" take care of yourself" work ethic, and now complains when her adult child ( the other one did too until nearly 30, another story that may ultimatly turn out bad) lives at home with no job, no ambition, no future plans?? That is what she TAUGHT them! I voiced my disgust at the mother's attitude, and the daughter's lack of reality and personal responsibilty to my husband and he seemed genuinly perplexed at his cousin and the situation. Hmm, reality slap of the WT teaching again and he has walled it off to the point he can't understand it. sigh....