The only drawback to the ribbed tips is they take a bit more effort to wash thoroughly, unlike the smooth finish tips that just take a quick swipe of the soaped sponge and they’re clean. I’m sure most restaurants are aware of that and only offer the smooth type. Or not this type at all, and just give Waribashi (disposable chopsticks).
Which brings us to exactly that, the waribashi (disposable) variety…