vision problems and alcohol might though. And it would explain the parents leaving her with him and not being concerned better than dementia.
Alcohol can dull the senses and at his age would probably make his blood pressure raise some. That could have made it harder for him to feel the breeze or cooler outside air on his face.
The family could not be aware of vision problems and may not have known he was drinking or how many drinks. If he wasn’t a drinker, he wouldn’t necessarily have been aware of the effects.
I believe it has been said that alcohol was NOT a factor here. Apparently this man does not drink.