Do you suppose Jim Bridger and Kit Carson carried iodine tablets around with them? Do you think they boiled every bit of water they ever drank?
Are you guys really so post-1960 that you have never drunk untreated water? Never drank from the pipe at the Uberfall?
Sure you can trot out all of the extreme cases - confirmation bias - to support your positions.
Why are you on Gunks.com? Don't you know that even using ropes and crap, that many people fall and die
? Or are you just really afraid of diarrhea