My mother has started reading up on ivermectin, and has noticed how the flu has magically disappeared, and nobody is pushing vit D, and the vax is not safe. So she's declined the vax. Critical thinking, yay! All because the Jehovah's Witnesses told her it was a personal choice and she could decide for herself. So she feels obliged to make the choice on her own terms. Paradoxical how being in a cult that tells you to think for yourself… oh, nevermind...
One time my sister in law told me that she raised her kids Catholic so they wouldn't join a worse cult. Living with no cults is possible but probably pretty rare! I suspect Martin's mom is pretty normal.