Jewish source,
When you claim something is halacha, you should bring a source. Why can’t a mother nurse in front of other children????
Can you define “public”? Because AFAIK, there used to be bathrooms in the field that multiple people could use. Aren’t there halachos of talking while using a bathroom? If no one was around, why would you need those halachos?
Neverless, if a man were wearing a “brief relief” would that be a problem?
People with incontinence issues certainly wear depends and use them in public.
bpt, I think the theory makes people uncomfortable. I used to be one of them. Until it was my child that needed feeding. There is no logical reason to be bothered by it, assuming a woman is covered.