But it's not real life.. It doesn't follow the same timespan or anything as our planet. When was the last time you seen a doctor here on Earth wave his hands and magically heal a person back to life after being hacked nearly to death by a battleaxe ?
To suggest they wouldn't know to boil water to kill bacteria on Nirn because they didn't in real life at these times (well you know what I mean) is ludicrous in my opinon.
You and I will never agree.
Although we both accept that it's NOT earth - I think fundamentally we differ in how we perceive Nirn in terms of physical laws. The fact that Niamh can fire sparks from her fingers does not, on our Nirn, preclude her from being poisoned by dodgy food and drink. Just because one thing is true does not mean the other is.
The problem with discussions of this nature involving fantasy worlds is that you can pretty much justify anything.
In our Nirn, food and drink conform to rules anologous to early earth - water is fundamentally dangerous, and beer is not.
Because that IRL is how it would have been.
In RP terms, we add that in to our experience - because like you, many "hardcoe" mods do not view water as dangerous.