Nervous to breastfeed in front of men

I’m nervous to breastfeed in front of men and older people like grandparents. Especially the in laws side of the family. My husband has all brothers and their mom did nothing to teach them about the female body and what’s normal. She’s also very shy and reserved and just grew up that way. His dad always swore he would never have girls because of how uncomfortable it makes him (gross I know). I feel like they’re all going to have an issue with it. I also don’t want to breastfeed in front of my father or step dad. I don’t want to have to cover myself I want to be brave not just because it’s important to me but because when I have other children, and I’m breast feeding in front of the older kids, I don’t want them to think a woman’s body is something to be ashamed of. And I don’t want them to think that everything about the body has to be sexualized. Yes I can’t get over my own feelings of shame around my own body enough to have the courage to do what I want. I’m going to feel so vulnerable and that scares me. Honestly I’m still very intimidated by men even though I claim to have taken back my power. I don’t want to teach my children that I should sensor my body especially for a man because I believe in raising a new generation of men and women who don’t sexualize eachother before treating eachother as humans as well as inherently feel like they have a right to dominate eachother because of gender. I don’t want my children to grow up having preconceived ideas about men that I do, and not the notions that my husband grew up thinking about women. We are both in this together but it’s hard to put aside how uncomfortable it makes us feel so we can change that narrative. Any advice?