To avoid burning onself
I was recently asked if Indians still eat in banana leaves and with their hands. About banana leaves I am not sure, but I think they pretty much do in villages, at least in South India. As far as eating with their hands they certainly do and it won't change so soon. And I don't see why it should change anyway! It is super funny to toy with your food before gulping it, and it's a good way not to burn your tongue. And it is a good way to also avoid dish washing, water and washing liquid wasting!
There are other ways to avoid burning oneself... For instance when coffee is too hot, they pour it in the saucer. And they drink from the saucer! And why not?? ;)