So in my family’s religion and culture, breast feeding a baby who isn’t yours still forms kinship and re establishes part of who you cannot marry and who you’re allowed alone with from the opposite sex even within family and who can help marry you off.
In my case, as a baby I was Breast fed by my dad’s sister and I became my aunt’s milk daughter and I am the milk sibling to all of her aunt’s children - so my cousins from my aunty, through me being breast fed, became immediate family to me and are just like my biological siblings. so her male children can no longer marry me and can be alone with me and can be my guardian when I marry as they are considered my brothers.
So it is a huge thing in my family’s religion.
It took my parents a while to conceive, and they used a clinic to finally have me. There were concerns as to whether I was biologically both of my parent’s daughter, but they loved me anyway and said they didn’t want to know. My mum breast fed me a couple times just in case I wasn’t biologically hers and kept me bottle fed after that, so I know I am the mahram of her brothers and her dad. My aunt breast fed me when my parents took me to Pakistan as a baby to make sure there was no way I wasn’t blood family to my aunties and uncles on my dad’s side because my parents are related and there was no cheating, they were wanting to protect family ties. I don’t know why they just didn’t do a dna test.
But they kept this from me and I found out because my mum and my aunt had an argument about it and I was told by my mum I couldn’t be alone with any of cousins from my dad’s side unless female and I asked what about the cousins from this aunt who breast fed me, they’re my brothers ffs!!