I assume if a human drank it directly from the udder of a cow that was allowed to roam freely with endless pasture, it would generally be fine? Pasturing cows in their own poop and them letting the milk sit in containers is probably the bigger issue?
I mean, breast feeding seems fine. But you can make your kid sick if you don’t carefully sterilize your breast pump and bottles, and if you don’t store the milk correctly and for only a brief time.