I am a Kashmiri and I have never heard of such things.. some of my cousins chose to wear it, others didn’t.. it was a personal choice.
This other time someone posted on GS that kashmiri girls HAVE to have the nose ring because it’s their culture and it shows how oppressed these women are! I dunno what’s ppl’s obsession with kashmiris and nose rings!!! 
Personally, I dun like it, I didnt wear it! Nothing to do with me being a kashmiri or not!