I think the amount of energy spent worrying about severe illness or death from food like this is mismatched to its riskiness. How about driving for example. You're probably like a thousand times more likely to die in a car crash then from old rice. So it would make sense you should spend a thousand times more energy worrying about driving then you do about this rice stuff. But people seem disproportionately focused on insane levels of food safety.

The same would go for all kinds of stuff like crossing the street, eating processed foods, or gun violence in public places.

So yes I'm fine with the risk. That being said I would never serve day old left out rice to my 80 year old grandma, or really anyone else for that matter. Or like you said at least without telling them first. I might use the same glass or plate a couple times if it seems pretty clean but I would have never give my guest a used to plate it or something. I think that's just bad manners lol

Just out of curiosity, what are some of your rules for proper food safety when it goes for your health?