Our immune system can fight off plenty.
But if you get a good hit from bacteria from whatever you cut yourself on, and don't use antiseptic, and then don't use antibiotics, you are dead.
Bacteria from the skin+bacteria from what you cut yourself on is a huge factor. Thus the soap which you mentioned earlier.
I still disagree.
I used to work at a summer camp next to a swamp.
We used to do an activity called "swamp mucking"
Take kids, go into the swamp, go into the muck pit.
Nobody ever got sick.
Our skin naturally cultivates good bacteria that helps us. Over-sanitation is actually detrimental to this. Always sanitize shit you use and wounds. But one can be quite dirty and fine.
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