I tried with my first but no milk came in, even with additional pumping. Literally not one drop. A midwife actually looked at me and said the milk was coming in based on the size of my breasts.... unaware that I have GG cup boobs even when I'm not pregnant/post birth/fat! My baby (obviously, given the lack of nutrition) dropped too much weight in the first few days so I gave her formula and never looked back. I didn't beat myself up about it as I had been firmly in the camp of 'give it a shot, but we'll see what happens'. I liked the idea of breastfeeding but liked the idea of a fed baby more. And I LOVED sharing feeding responsibilities and being able to see exactly how much my baby had taken, no stress wondering about how long she'd been feeding v how much she might have actually had. Didn't enjoy the cost of formula...
With my second I put him on the breast just to see and as a natural (to me) thing to do, he worked really hard but still nothing. I had formula ready that time.
No support from anyone, even though I was in hospital for a few days with my second due to complications.
Interestingly, my mother never produced milk for any of her four babies. One of my sisters breastfed for a while with her babies but the other didn't try. She just didn't want to, no further explanation given. She just didn't like the thought of it. Totally up to her.
I did once have a nurse/midwife on a prenatal ward tell me there is NO reason a woman physically can't breastfeed, ever. I didn't bother telling her my own situation or question women who have had mastectomies... I wish I had. I also wanted to tell her that the stars suggest a very small number of women don't produce milk but the stats are likely wrong. My notes don't say anywhere that I didn't produce milk, because my first baby latched and I was released from hospital under the impression I WAS breastfeeding. Nobody changed those notes, they just wrote that I had stopped.
I don't think OP's initial post was goady or judgemental, she was just wondering about something she doesn't understand as she has no experience of. Fair enough!