In Science World, these are called "anecdotes", not data.
Your daughter cannot observe the alternate universe where she was unvaxxed and contracted Covid - so she doesn't know how that would have turned out.
It could have been exactly the same.
Likewise the unvaxxed daughter-in-law may have had exactly the same outcome had she been vaxxed.
People who say that "the vaccine lessens the severity of the disease" are just repeating what they've been told, which is not actual science.
The dead vaxxed in Israel would be able to tell you that - but they're dead...
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In Science World, these are called “anecdotes”, not data.
Agree 100%, although they are used regularly hereon by both sides to support their position - and they’re equally invalid for both.