Who cuts the Strawhats’ hair

D: The crew’s hair has to grow out on those long voyages, right? Does someone give the rest haircuts? Nami or Robin, perhaps? –I Want to be a Hairdresser

O: True, their hair does grow out. So who gives haircuts on the crew? Why, it’s Zoro. He turns on the rest and goes, “Tiger Trap!!” Just kidding!! What the hell, man?!! I’m gonnawhupyer behind!! Shuer yerpiehole!! Why, I oughtta!! The real answer is prolly Usopp or Robin. Maybe I should draw a heart-warmin’ picture of a haircut someday.

*The weird way in which Oda-sensei replied was because the previous reader asked him to speak in Kansai dialect