Aloha - there are not millions of Africans and Lations breastfeeding their 8 year olds - that's true. But there is no social stigma attached to those that do because BF in general is more "normal" than it is here in the UK.
These are societies where being physical and tactile are also much more normal than here in the UK. Most Latinos and Africans I have known (I used to go to international schools when I lived abroad) were extremely tactile and I can see that in a culture like that parenting in general is very physical.