So much of the Watchtower materials on blood make it look abhorrent and "dirty". People have a hard time shaking taboos this strong.
P.S. I am updating my personal directive this week.
This, exactly. My mom has been out for years, and when she needed surgery for cancer a while back she still wanted to make a big deal about no blood, to the point that no one was willing to operate on her. I finally talked her out of it, and she's fine now.
Flash forward to a couple months ago when my sister got hit by a train and needed blood, and she was the same way, which was astounding. She's been out even longer, was always much more "worldly" than mom or me, and even when she was in I never even imagined that she was that in. She might have even been DFed, I'm not sure.
It's amazing the level of mind control that the cult retains over seemingly normal people who you thought were out for years and years.