even cheap hole in a wall restaurants in China use reusable chopsticks from hard wood/plastic, they have even special cleaning machine where you just throw them

even cheap hole in a wall restaurants in China use reusable chopsticks from hard wood/plastic, they have even special cleaning machine where you just throw them in top and when cleaned they stick from side metal chopsticks are pretty much standard in Korea (personally not a fan, prefer hard wood or good quality plastic, metal feels cold and clinks on teeth)