What do you think it's the maximum age for breastfeeding?

I have an Aunt, who had 6 kids all my cousins, all fairly close in age, one time I was over, she was breastfeeding one of the young girls age 2, however my my shock, once she was done my 8 yr old cousin latched on and it was like he was downing a sports drink, his hand was on the other boob, damn, I am was in shock but her husband my uncle died of cancer, she didn't have much money for food.

What do you think it's the maximum age for breastfeeding?
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