I live in China, and spend a great deal of time in Thailand. I know here, the older generation is super-pro BF, but so many of the younger women have to work that many don't nurse for more than a few weeks. Formula is becoming more common, partly cause they see it as easier and partly because it's almost impossible to find a decent pump/pumping supplies so they could pump and work.
In rural areas, where people are considerably poorer than in the cities, BF is still much more the norm, and even here in the city, we often see the poorer women sitting on the curbside NIP. There's no bad stigma about that at all. People come up to me, complete strangers, asking me if my baby is nursing, how's my milk supply, giving me suggestions on increasing it, etc!
My daughter was born in Thailand, and I was appalled that I was the only woman there who was nursing full time at the beginning - some women were nursing, but left their babies in the nursery to be FF at night so they could sleep. Some didn't try to nurse at all. Our pediatrician told me Thai women can't nurse because they have small breasts
and that since mine were big, that was why we had success. She also said that they routinely give formula, 3 bottles a day, to kids up to age 3!!
: She said she figured it was just probably a marketing ploy by the formula companies, but that they were claiming formula was better than BM, and that it's standard medical practice. They were shocked that my 2 yo has never had formula!
My DH travels in Mongolia often, and though it's not as common anymore in the cities, in rural areas many women EN and even tandem nurse for an extended period (years, not sure)
Many of our friends are Muslim, and they've told me that Mohammed said children have the right to be nursed til age 2 at least, so they've congratulated me for doing that, but I've noticed many of the younger generation aren't doing that as much anymore . . .
Just my rambling thoughts from the cultures we have contact with