Occam's razor is basically (paraphrased) "given two explanations where all else is equal, the one with the fewest added assumptions is most likely true." Based

Occam's razor is basically (paraphrased) "given two explanations where all else is equal, the one with the fewest added assumptions is most likely true." Based on that Occam's razor is already out the window because all else isn't equal. Also this "more fragile people" argument assumes the "fragility" is both inherent and of a lifelong kind. This ignores that most causes of infant mortility are external, and that for many of those being exposed to them results in a lifelong increased mortality risk. Excessive hygiene leading to more allergies is a direct example of this.