It's because Muppo has a bad habit, and very bad luck, with splitting the wooden chopsticks as well as breaking them with her immense strength.
And, so...so close. Almost did it Muppo, but alas misfortunate strikes again. I can also see the Poi Poi sticker so I assume this is Poidachi's Ramen shop and that hand is hers.
I think it is a combination of all ideas. You have your own, so you don't have any fear of unclean chopsticks, you do not worry about breaking the weak wooden ones. And probably you are cleaner too. All of this, of course, if you do not forget them in the shop.
Sssllp
Please come again!Own ChopsticksHere's your ramen.