"For some, like my grandmother, not know TTATT is a blessing. She was so happy to die faithful"
I have some older friends in the "truth"! I think it's best for them to stay inside and be happy! To confront them, would probably make them very ill and even sick. No need for that. Besides, some jw may have God's approval anyways, even though WTS is false (if you believe in God that is).
There's many reasons to stay with a religion. But young people should have a chance to see both sides.
Sorry for your grandmothers death! Best wishes for you!
Love from your brother, Healthworker