I try and look at that as preventive maintenance........ Homegrown penicillin if you will..... anything that doesn't kill you only makes you stronger..... Our local ER needs a self check in or at minimum frequent flyer points.
That's pretty much my attitude too. I'm not real fussy about bacteria or mold and rather routinely eat stuff the grandkids drop on the floor. It's just easier to eat it than throw it away.
Joking aside, I met a rather famous immunologist 20 years ago who told me that modern hygiene is actually reducing our resistance to pathogens. Her advice was to let kids eat off the floor, play in the dirt, and take infrequent baths. In her opinion, our modern aversion to pathogens and excessive hygiene is weakening our immune systems.