I agree that current attitudes to breastfeeding in the UK/US are a hangover from the 60s/70s medicalisation of childbrearing/childbirth/childrearing. Most modern-day grandmothers were advised to leave childbirth to doctors/bottle feed/get their babies sleeping apart and this is continuing to resonate today.
It's also down to a unhealthy, "kiss me quick"-yet-prudish attitude in this country towards breasts/motherhood, which leads many women to feel embarassed/unattractive/uptight when breastfeeding in public. When I lived in Spain, I saw women breastfeeding in public far more than here and the (mostly male) estate agents who showed us flats assumed our 10 month old baby would be sleeping in our bed. When I stayed with a family in Indonesia, the baby slept between her parents.
But I also think women are too bothered about what other people think. I've breastfeed in all sorts of public places (pubs full of men watching football, restaurants, buses) and people have barely noticed: I've not had one strange look or comment. But, having had looks and comments about all sorts of other things (such as having a drink in a pub with a black man when I'm a white woman), I've learnt to ignore other's woeful views. Of course you have to get used to it and, especially, once the first few (not necessarily 6) months of exclusive feeding are out the way, it shouldn't restrict you in any way.
I think women should be encouraged understand their attitudes to breastfeeding. Luckily, I was told from a young age that my great-grandmother breastfeed all 11 of her children until 3 years while landlady of a busy pub. Perhaps this is why I've breastfed all three of my sons until a similar age while still working/going out/being 'normal'.
The thing that intrigues me most is that the people who are so quick to condemn pregnant women who ignore advice on drinking/smoking while pregnant are less quick to criticise women who ignore advice on breastfeeding. I wonder if calling formula 'fake breastmilk' and dummies 'fake nipples' would help reframe the debate. Not that I think badly of anyone who doesn't breastfeed - each to their own.
And I'm amazed at the ignorance about growth spurts and 'not producing enough milk'. Luckily, I ignored the midwife who told me that if my first son needed feeding more at 2 months, I should give him a dummy. I don't think the obsession with weighing helps. I've never had my babies weighed - or weighed myself. You know when your baby's healthy and growing. Just like you know if you're getting unhealthily overweight.
I do hope things change for my children's generation.