That's a reasonable question. I don't how people in other countries cook it, but in India this is the most followed procedure for all pasta and noodles.

• First reason for this is that because when we boil it, it release a thick white sticky starch like which need to be washed out for non-sticky and non-starchy flavor.
• Another is that in India, it is sold openly in markets, because of which there may be dust inside the holes which came out while boiling and washing 2-3 times, wash it out completely.

Thank you for asking your doubt😊. And that's my neighboring aunt's girl, not my niece😅.

Have a great day😇✌.