The problem is op, how are you to know the difference between someone who is struggling but needs (and would appreciate) encouragement to continue and someone who is actually struggling with their mental health and could really do with being told it’s ok to stop?
I was desperate to breastfeed and convinced that I would succeed, and that anyone could if they really wanted to. When I was pregnant I spent hours reading mumsnet and kellymom, getting tips on how to encourage my milk to come in, collecting colostrum, different holds, how to survive cluster feeding etc (the information is all out there if you look for it, despite claims to the contrary). I looked up my local breastfeeding support group, did nct etc.
Then dd arrived 6 weeks early and spent a week in scbu. I set my alarm and got up every 3 hours to syringe off colostrum and then pump once my milk came in, often sitting alongside her crib or looking at a picture of her. When I was able to try and feed her she couldn’t latch at all but I was told it would improve, she was just little etc.
This continued for 8 weeks and only got more painful and stressful. She was showing all the signs of tongue tie but I was told over and over again that the latch was fine, she seemed to be feeding ok (she wasn’t). It hurt so much I cried every feed. I read every breastfeeding site, tried every hold, asked every family member/friend who had breastfed for advice. I went to my nhs breastfeeding support group every week and pretty much had my own tissue box there as I inevitably ended up in floods of tears.
Every single one of them told me to persevere and it would ‘get better’.
It didn’t. I started feeling very unwell, stopped eating and became distant from my baby. I went to see my gp and ended up being referred to the mother and infant mental health service. The nurse I spoke to was the first one who said ‘you know it’s ok to stop?’ and it was like a huge weight had been lifted. I still struggled with it for a while and felt like utter shit for failing my baby (believe me I’ve read all the studies about health and emotional benefits of breastfeeding) and carried on pumping for another few weeks, but going onto formula was the best thing I did. I fell back in love with her again.
My health visitor did eventually relent and refer us to a lactation consultant when dd was 8 weeks old - who immediately confirmed she had a severe posterior tongue tie and she was amazed I’d managed to breastfeed at all 
.
Anyway, after my huge essay, the point Im making is that I kept all my anguish and upset under wraps as I didn’t want anyone to know how much I was struggling. I prob would have presented as someone who ‘just needed a bit more encouragement’ when really I was in serious trouble.