Japanese people's culture is "If it's working like that, keep it like that".
I once had to make a Japanese website for a cars wholesale company that ship cars for different countries on the world and they used to do a lot of work manually on their old website wanted to update it because they lost contact with the old developer (used to HTML the website).
He was like no-no for everything that will cost money (themes, plugins...), I didn't felt comfortable dealing with him since he said no for a $50 translation plugin and he wanted translation on his website (he will get transitioned text himself somehow, don't like this step step things...) and I'm sure I will charge him more than $50 to write a translation plugin (since I won't put it on an online store).
I once had to make a Japanese website for a cars wholesale company that ship cars for different countries on the world and they used to do a lot of work manually on their old website wanted to update it because they lost contact with the old developer (used to HTML the website).
He was like no-no for everything that will cost money (themes, plugins...), I didn't felt comfortable dealing with him since he said no for a $50 translation plugin and he wanted translation on his website (he will get transitioned text himself somehow, don't like this step step things...) and I'm sure I will charge him more than $50 to write a translation plugin (since I won't put it on an online store).