Why are you culture shaming?
For one, not all cultures are equivalent. Shoveling rice into your maw with your bare hands is not necessary when utensils are widely available.
An American could also eat all of the following foods with utensils, which are widely available in the States, but they instead shovel these into their maws:
Hamburgers, hot dogs, French fries, popcorn, pizza, fried chicken, tacos, sandwiches, and more
Seems like some people want to denigrate members of other cultures who happen to eat other types of foods with their hands.
Edited to add: sorry for jumping in on a post from many pages ago. If the conversation has moved on feel free to ignore me.