And if Masks stop the spread in Nursing homes, the same concept should apply in homes. Nursing homes are literally germ factories. If masks stop that, then why wouldn't it work in homes with less people?
You seem to be working under the assumption that families are all doing exactly the same thing everyday. One might be working in a factory all day (wearing a mask), another teaching college (in person wearing a mask), another living at home while going to college (wearing a mask), another in high school (wearing a mask).
Then they all come home and don't wear masks.
Either masks work....or they don't. If they do work, health officials shouldn't be ignoring a high risk environment (homes).