I think that makes it tough

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My mom did breast feed my sisters and me, but for my older sister and me, it was only 4-6 weeks. At the time, the physicians, her mother, and her MIL were all recommending formula vs. breast feeding. I think my grandmothers were part of the generation that viewed breastfeeding as not as sterile or able to provide as much nutrition as formula. I think I had a virus of some kind at around 4 weeks, and the pediatrician told her she might as well give me formula because she'd lose her supply if I was sick.

How times have changed! Then when my younger sister came along, my mom was more informed and breast fed longer (several months?). So my mom was definitely supportive of it.
My MIL did breast feed all four of her kids for a year or so each. She's a big supporter.
My older sister breast fed both of her kids until they were toddlers. She did tandem BF for a while. Definitely a huge supporter.
My younger sister breast fed her son, but struggled with supply when she went back to work. She's a nurse, and found it tough to get away to pump (even though legally she was allowed to...sometimes patient care just didn't allow for it). But she nursed/pumped as long as she could, which was several months I think.
And then I know I have at least a couple of cousins who have BF their kids. So I'd say, in general, my family is pretty supportive. Outside of my family, though, most people I know IRL would think that nursing a toddler is VERY strange. I work in healthcare, and you'd think they they'd be more likely to understand, but my co-workers at the time I was BF last time were NOT supportive. Only one of the ladies had a child, though, and she thought that 6 weeks of BF was all anyone should even try to do. Everyone that I worked with felt that it was inappropriate to nurse a baby/child who could talk, ask to nurse, or had teeth.

I just didn't talk about it, and most of them have no idea that I BF as long as I did.